public interface
DatabaseMetaData
implements
Wrapper
Comprehensive information about the database as a whole.
This interface is implemented by driver vendors to let users know the capabilities of a Database Management System (DBMS) in combination with the driver based on JDBCTM technology ("JDBC driver") that is used with it. Different relational DBMSs often support different features, implement features in different ways, and use different data types. In addition, a driver may implement a feature on top of what the DBMS offers. Information returned by methods in this interface applies to the capabilities of a particular driver and a particular DBMS working together. Note that as used in this documentation, the term "database" is used generically to refer to both the driver and DBMS.
A user for this interface is commonly a tool that needs to discover how to
deal with the underlying DBMS. This is especially true for applications
that are intended to be used with more than one DBMS. For example, a tool might use the method
getTypeInfo to find out what data types can be used in a
CREATE TABLE statement. Or a user might call the method
supportsCorrelatedSubqueries to see if it is possible to use
a correlated subquery or supportsBatchUpdates to see if it is
possible to use batch updates.
Some DatabaseMetaData methods return lists of information
in the form of ResultSet objects.
Regular ResultSet methods, such as
getString and getInt, can be used
to retrieve the data from these ResultSet objects. If
a given form of metadata is not available, an empty ResultSet
will be returned. Additional columns beyond the columns defined to be
returned by the ResultSet object for a given method
can be defined by the JDBC driver vendor and must be accessed
by their column label.
Some DatabaseMetaData methods take arguments that are
String patterns. These arguments all have names such as fooPattern.
Within a pattern String, "%" means match any substring of 0 or more
characters, and "_" means match any one character. Only metadata
entries matching the search pattern are returned. If a search pattern
argument is set to null, that argument's criterion will
be dropped from the search.
Constant Summary
| short | attributeNoNulls | Indicates that NULL values might not be allowed. |
| short | attributeNullable | Indicates that NULL values are definitely allowed. |
| short | attributeNullableUnknown | Indicates that whether NULL values are allowed is not
known. |
| int | bestRowNotPseudo | Indicates that the best row identifier is NOT a pseudo column. |
| int | bestRowPseudo | Indicates that the best row identifier is a pseudo column. |
| int | bestRowSession | Indicates that the scope of the best row identifier is the remainder of the current session. |
| int | bestRowTemporary | Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used. |
| int | bestRowTransaction | Indicates that the scope of the best row identifier is the remainder of the current transaction. |
| int | bestRowUnknown | Indicates that the best row identifier may or may not be a pseudo column. |
| int | columnNoNulls | Indicates that the column might not allow NULL values. |
| int | columnNullable | Indicates that the column definitely allows NULL values. |
| int | columnNullableUnknown | Indicates that the nullability of columns is unknown. |
| int | functionColumnIn | Indicates that the parameter or column is an IN parameter. |
| int | functionColumnInOut | Indicates that the parameter or column is an INOUT parameter. |
| int | functionColumnOut | Indicates that the parameter or column is an OUT parameter. |
| int | functionColumnResult | Indicates that the parameter or column is a column in a result set. |
| int | functionColumnUnknown | Indicates that type of the parameter or column is unknown. |
| int | functionNoNulls | Indicates that NULL values are not allowed. |
| int | functionNoTable | Indicates that the function does not return a table. |
| int | functionNullable | Indicates that NULL values are allowed. |
| int | functionNullableUnknown | Indicates that whether NULL values are allowed
is unknown. |
| int | functionResultUnknown | Indicates that it is not known whether the function returns a result or a table. |
| int | functionReturn | Indicates that the parameter or column is a return value. |
| int | functionReturnsTable | Indicates that the function returns a table. |
| int | importedKeyCascade | For the column UPDATE_RULE,
indicates that
when the primary key is updated, the foreign key (imported key)
is changed to agree with it. |
| int | importedKeyInitiallyDeferred | Indicates deferrability. |
| int | importedKeyInitiallyImmediate | Indicates deferrability. |
| int | importedKeyNoAction | For the columns UPDATE_RULE
and DELETE_RULE, indicates that
if the primary key has been imported, it cannot be updated or deleted. |
| int | importedKeyNotDeferrable | Indicates deferrability. |
| int | importedKeyRestrict | For the column UPDATE_RULE, indicates that
a primary key may not be updated if it has been imported by
another table as a foreign key. |
| int | importedKeySetDefault | For the columns UPDATE_RULE
and DELETE_RULE, indicates that
if the primary key is updated or deleted, the foreign key (imported key)
is set to the default value. |
| int | importedKeySetNull | For the columns UPDATE_RULE
and DELETE_RULE, indicates that
when the primary key is updated or deleted, the foreign key (imported key)
is changed to NULL. |
| int | procedureColumnIn | Indicates that the column stores IN parameters. |
| int | procedureColumnInOut | Indicates that the column stores INOUT parameters. |
| int | procedureColumnOut | Indicates that the column stores OUT parameters. |
| int | procedureColumnResult | Indicates that the column stores results. |
| int | procedureColumnReturn | Indicates that the column stores return values. |
| int | procedureColumnUnknown | Indicates that type of the column is unknown. |
| int | procedureNoNulls | Indicates that NULL values are not allowed. |
| int | procedureNoResult | Indicates that the procedure does not return a result. |
| int | procedureNullable | Indicates that NULL values are allowed. |
| int | procedureNullableUnknown | Indicates that whether NULL values are allowed
is unknown. |
| int | procedureResultUnknown | Indicates that it is not known whether the procedure returns a result. |
| int | procedureReturnsResult | Indicates that the procedure returns a result. |
| int | sqlStateSQL | A possible return value for the method
DatabaseMetaData.getSQLStateType which is used to indicate
whether the value returned by the method
SQLException.getSQLState is an SQLSTATE value. |
| int | sqlStateSQL99 | A possible return value for the method
DatabaseMetaData.getSQLStateType which is used to indicate
whether the value returned by the method
SQLException.getSQLState is an SQL99 SQLSTATE value. |
| int | sqlStateXOpen | A possible return value for the method
DatabaseMetaData.getSQLStateType which is used to indicate
whether the value returned by the method
SQLException.getSQLState is an
X/Open (now know as Open Group) SQL CLI SQLSTATE value. |
| short | tableIndexClustered | Indicates that this table index is a clustered index. |
| short | tableIndexHashed | Indicates that this table index is a hashed index. |
| short | tableIndexOther | Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these. |
| short | tableIndexStatistic | Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions. |
| int | typeNoNulls | Indicates that a NULL value is NOT allowed for this
data type. |
| int | typeNullable | Indicates that a NULL value is allowed for this
data type. |
| int | typeNullableUnknown | Indicates that it is not known whether a NULL value
is allowed for this data type. |
| int | typePredBasic | Indicates that the data type can be only be used in WHERE
search clauses
that do not use LIKE predicates. |
| int | typePredChar | Indicates that the data type
can be only be used in WHERE search clauses
that use LIKE predicates. |
| int | typePredNone | Indicates that WHERE search clauses are not supported
for this type. |
| int | typeSearchable | Indicates that all WHERE search clauses can be
based on this type. |
| int | versionColumnNotPseudo | Indicates that this version column is NOT a pseudo column. |
| int | versionColumnPseudo | Indicates that this version column is a pseudo column. |
| int | versionColumnUnknown | Indicates that this version column may or may not be a pseudo column. |
Public Method Summary
| abstract boolean |
allProceduresAreCallable()
Retrieves whether the current user can call all the procedures
returned by the method
getProcedures. |
| abstract boolean |
allTablesAreSelectable()
Retrieves whether the current user can use all the tables returned
by the method
getTables in a SELECT
statement. |
| abstract boolean |
autoCommitFailureClosesAllResultSets()
Retrieves whether a
SQLException while autoCommit is true inidcates
that all open ResultSets are closed, even ones that are holdable. |
| abstract boolean |
dataDefinitionCausesTransactionCommit()
Retrieves whether a data definition statement within a transaction forces
the transaction to commit.
|
| abstract boolean |
dataDefinitionIgnoredInTransactions()
Retrieves whether this database ignores a data definition statement
within a transaction.
|
| abstract boolean |
deletesAreDetected(int type)
Retrieves whether or not a visible row delete can be detected by
calling the method
ResultSet.rowDeleted. |
| abstract boolean |
doesMaxRowSizeIncludeBlobs()
Retrieves whether the return value for the method
getMaxRowSize includes the SQL data types
LONGVARCHAR and LONGVARBINARY. |
| abstract ResultSet |
getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern)
Retrieves a description of the given attribute of the given type
for a user-defined type (UDT) that is available in the given schema
and catalog.
|
| abstract ResultSet |
getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable)
Retrieves a description of a table's optimal set of columns that
uniquely identifies a row.
|
| abstract String |
getCatalogSeparator()
Retrieves the
String that this database uses as the
separator between a catalog and table name. |
| abstract String |
getCatalogTerm()
Retrieves the database vendor's preferred term for "catalog".
|
| abstract ResultSet |
getCatalogs()
Retrieves the catalog names available in this database.
|
| abstract ResultSet |
getClientInfoProperties()
Retrieves a list of the client info properties
that the driver supports.
|
| abstract ResultSet |
getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern)
Retrieves a description of the access rights for a table's columns.
|
| abstract ResultSet |
getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)
Retrieves a description of table columns available in
the specified catalog.
|
| abstract Connection |
getConnection()
Retrieves the connection that produced this metadata object.
|
| abstract ResultSet |
getCrossReference(String parentCatalog, String parentSchema, String parentTable, String foreignCatalog, String foreignSchema, String foreignTable)
Retrieves a description of the foreign key columns in the given foreign key
table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table).
|
| abstract int |
getDatabaseMajorVersion()
Retrieves the major version number of the underlying database.
|
| abstract int |
getDatabaseMinorVersion()
Retrieves the minor version number of the underlying database.
|
| abstract String |
getDatabaseProductName()
Retrieves the name of this database product.
|
| abstract String |
getDatabaseProductVersion()
Retrieves the version number of this database product.
|
| abstract int |
getDefaultTransactionIsolation()
Retrieves this database's default transaction isolation level.
|
| abstract int |
getDriverMajorVersion()
Retrieves this JDBC driver's major version number.
|
| abstract int |
getDriverMinorVersion()
Retrieves this JDBC driver's minor version number.
|
| abstract String |
getDriverName()
Retrieves the name of this JDBC driver.
|
| abstract String |
getDriverVersion()
Retrieves the version number of this JDBC driver as a
String. |
| abstract ResultSet |
getExportedKeys(String catalog, String schema, String table)
Retrieves a description of the foreign key columns that reference the
given table's primary key columns (the foreign keys exported by a
table).
|
| abstract String |
getExtraNameCharacters()
Retrieves all the "extra" characters that can be used in unquoted
identifier names (those beyond a-z, A-Z, 0-9 and _).
|
| abstract ResultSet |
getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern)
Retrieves a description of the given catalog's system or user
function parameters and return type.
|
| abstract ResultSet |
getFunctions(String catalog, String schemaPattern, String functionNamePattern)
Retrieves a description of the system and user functions available
in the given catalog.
|
| abstract String |
getIdentifierQuoteString()
Retrieves the string used to quote SQL identifiers.
|
| abstract ResultSet |
getImportedKeys(String catalog, String schema, String table)
Retrieves a description of the primary key columns that are
referenced by the given table's foreign key columns (the primary keys
imported by a table).
|
| abstract ResultSet |
getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate)
Retrieves a description of the given table's indices and statistics.
|
| abstract int |
getJDBCMajorVersion()
Retrieves the major JDBC version number for this
driver.
|
| abstract int |
getJDBCMinorVersion()
Retrieves the minor JDBC version number for this
driver.
|
| abstract int |
getMaxBinaryLiteralLength()
Retrieves the maximum number of hex characters this database allows in an
inline binary literal.
|
| abstract int |
getMaxCatalogNameLength()
Retrieves the maximum number of characters that this database allows in a
catalog name.
|
| abstract int |
getMaxCharLiteralLength()
Retrieves the maximum number of characters this database allows
for a character literal.
|
| abstract int |
getMaxColumnNameLength()
Retrieves the maximum number of characters this database allows
for a column name.
|
| abstract int |
getMaxColumnsInGroupBy()
Retrieves the maximum number of columns this database allows in a
GROUP BY clause. |
| abstract int |
getMaxColumnsInIndex()
Retrieves the maximum number of columns this database allows in an index.
|
| abstract int |
getMaxColumnsInOrderBy()
Retrieves the maximum number of columns this database allows in an
ORDER BY clause. |
| abstract int |
getMaxColumnsInSelect()
Retrieves the maximum number of columns this database allows in a
SELECT list. |
| abstract int |
getMaxColumnsInTable()
Retrieves the maximum number of columns this database allows in a table.
|
| abstract int |
getMaxConnections()
Retrieves the maximum number of concurrent connections to this
database that are possible.
|
| abstract int |
getMaxCursorNameLength()
Retrieves the maximum number of characters that this database allows in a
cursor name.
|
| abstract int |
getMaxIndexLength()
Retrieves the maximum number of bytes this database allows for an
index, including all of the parts of the index.
|
| abstract int |
getMaxProcedureNameLength()
Retrieves the maximum number of characters that this database allows in a
procedure name.
|
| abstract int |
getMaxRowSize()
Retrieves the maximum number of bytes this database allows in
a single row.
|
| abstract int |
getMaxSchemaNameLength()
Retrieves the maximum number of characters that this database allows in a
schema name.
|
| abstract int |
getMaxStatementLength()
Retrieves the maximum number of characters this database allows in
an SQL statement.
|
| abstract int |
getMaxStatements()
Retrieves the maximum number of active statements to this database
that can be open at the same time.
|
| abstract int |
getMaxTableNameLength()
Retrieves the maximum number of characters this database allows in
a table name.
|
| abstract int |
getMaxTablesInSelect()
Retrieves the maximum number of tables this database allows in a
SELECT statement. |
| abstract int |
getMaxUserNameLength()
Retrieves the maximum number of characters this database allows in
a user name.
|
| abstract String |
getNumericFunctions()
Retrieves a comma-separated list of math functions available with
this database.
|
| abstract ResultSet |
getPrimaryKeys(String catalog, String schema, String table)
Retrieves a description of the given table's primary key columns.
|
| abstract ResultSet |
getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern)
Retrieves a description of the given catalog's stored procedure parameter
and result columns.
|
| abstract String |
getProcedureTerm()
Retrieves the database vendor's preferred term for "procedure".
|
| abstract ResultSet |
getProcedures(String catalog, String schemaPattern, String procedureNamePattern)
Retrieves a description of the stored procedures available in the given
catalog.
|
| abstract int |
getResultSetHoldability()
Retrieves this database's default holdability for
ResultSet
objects. |
| abstract RowIdLifetime |
getRowIdLifetime()
Indicates whether or not this data source supports the SQL
ROWID type,
and if so the lifetime for which a RowId object remains valid. |
| abstract String |
getSQLKeywords()
Retrieves a comma-separated list of all of this database's SQL keywords
that are NOT also SQL:2003 keywords.
|
| abstract int |
getSQLStateType()
Indicates whether the SQLSTATE returned by
SQLException.getSQLState
is X/Open (now known as Open Group) SQL CLI or SQL:2003. |
| abstract String |
getSchemaTerm()
Retrieves the database vendor's preferred term for "schema".
|
| abstract ResultSet |
getSchemas(String catalog, String schemaPattern)
Retrieves the schema names available in this database.
|
| abstract ResultSet |
getSchemas()
Retrieves the schema names available in this database.
|
| abstract String |
getSearchStringEscape()
Retrieves the string that can be used to escape wildcard characters.
|
| abstract String |
getStringFunctions()
Retrieves a comma-separated list of string functions available with
this database.
|
| abstract ResultSet |
getSuperTables(String catalog, String schemaPattern, String tableNamePattern)
Retrieves a description of the table hierarchies defined in a particular
schema in this database.
|
| abstract ResultSet |
getSuperTypes(String catalog, String schemaPattern, String typeNamePattern)
Retrieves a description of the user-defined type (UDT) hierarchies defined in a
particular schema in this database.
|
| abstract String |
getSystemFunctions()
Retrieves a comma-separated list of system functions available with
this database.
|
| abstract ResultSet |
getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern)
Retrieves a description of the access rights for each table available
in a catalog.
|
| abstract ResultSet |
getTableTypes()
Retrieves the table types available in this database.
|
| abstract ResultSet | |
| abstract String |
getTimeDateFunctions()
Retrieves a comma-separated list of the time and date functions available
with this database.
|
| abstract ResultSet |
getTypeInfo()
Retrieves a description of all the data types supported by
this database.
|
| abstract ResultSet | |
| abstract String |
getURL()
Retrieves the URL for this DBMS.
|
| abstract String |
getUserName()
Retrieves the user name as known to this database.
|
| abstract ResultSet |
getVersionColumns(String catalog, String schema, String table)
Retrieves a description of a table's columns that are automatically
updated when any value in a row is updated.
|
| abstract boolean |
insertsAreDetected(int type)
Retrieves whether or not a visible row insert can be detected
by calling the method
ResultSet.rowInserted. |
| abstract boolean |
isCatalogAtStart()
Retrieves whether a catalog appears at the start of a fully qualified
table name.
|
| abstract boolean |
isReadOnly()
Retrieves whether this database is in read-only mode.
|
| abstract boolean |
locatorsUpdateCopy()
Indicates whether updates made to a LOB are made on a copy or directly
to the LOB.
|
| abstract boolean |
nullPlusNonNullIsNull()
Retrieves whether this database supports concatenations between
NULL and non-NULL values being
NULL. |
| abstract boolean |
nullsAreSortedAtEnd()
Retrieves whether
NULL values are sorted at the end regardless of
sort order. |
| abstract boolean |
nullsAreSortedAtStart()
Retrieves whether
NULL values are sorted at the start regardless
of sort order. |
| abstract boolean |
nullsAreSortedHigh()
Retrieves whether
NULL values are sorted high. |
| abstract boolean |
nullsAreSortedLow()
Retrieves whether
NULL values are sorted low. |
| abstract boolean |
othersDeletesAreVisible(int type)
Retrieves whether deletes made by others are visible.
|
| abstract boolean |
othersInsertsAreVisible(int type)
Retrieves whether inserts made by others are visible.
|
| abstract boolean |
othersUpdatesAreVisible(int type)
Retrieves whether updates made by others are visible.
|
| abstract boolean |
ownDeletesAreVisible(int type)
Retrieves whether a result set's own deletes are visible.
|
| abstract boolean |
ownInsertsAreVisible(int type)
Retrieves whether a result set's own inserts are visible.
|
| abstract boolean |
ownUpdatesAreVisible(int type)
Retrieves whether for the given type of
ResultSet object,
the result set's own updates are visible. |
| abstract boolean |
storesLowerCaseIdentifiers()
Retrieves whether this database treats mixed case unquoted SQL identifiers as
case insensitive and stores them in lower case.
|
| abstract boolean |
storesLowerCaseQuotedIdentifiers()
Retrieves whether this database treats mixed case quoted SQL identifiers as
case insensitive and stores them in lower case.
|
| abstract boolean |
storesMixedCaseIdentifiers()
Retrieves whether this database treats mixed case unquoted SQL identifiers as
case insensitive and stores them in mixed case.
|
| abstract boolean |
storesMixedCaseQuotedIdentifiers()
Retrieves whether this database treats mixed case quoted SQL identifiers as
case insensitive and stores them in mixed case.
|
| abstract boolean |
storesUpperCaseIdentifiers()
Retrieves whether this database treats mixed case unquoted SQL identifiers as
case insensitive and stores them in upper case.
|
| abstract boolean |
storesUpperCaseQuotedIdentifiers()
Retrieves whether this database treats mixed case quoted SQL identifiers as
case insensitive and stores them in upper case.
|
| abstract boolean |
supportsANSI92EntryLevelSQL()
Retrieves whether this database supports the ANSI92 entry level SQL
grammar.
|
| abstract boolean |
supportsANSI92FullSQL()
Retrieves whether this database supports the ANSI92 full SQL grammar supported.
|
| abstract boolean |
supportsANSI92IntermediateSQL()
Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
|
| abstract boolean |
supportsAlterTableWithAddColumn()
Retrieves whether this database supports
ALTER TABLE
with add column. |
| abstract boolean |
supportsAlterTableWithDropColumn()
Retrieves whether this database supports
ALTER TABLE
with drop column. |
| abstract boolean |
supportsBatchUpdates()
Retrieves whether this database supports batch updates.
|
| abstract boolean |
supportsCatalogsInDataManipulation()
Retrieves whether a catalog name can be used in a data manipulation statement.
|
| abstract boolean |
supportsCatalogsInIndexDefinitions()
Retrieves whether a catalog name can be used in an index definition statement.
|
| abstract boolean |
supportsCatalogsInPrivilegeDefinitions()
Retrieves whether a catalog name can be used in a privilege definition statement.
|
| abstract boolean |
supportsCatalogsInProcedureCalls()
Retrieves whether a catalog name can be used in a procedure call statement.
|
| abstract boolean |
supportsCatalogsInTableDefinitions()
Retrieves whether a catalog name can be used in a table definition statement.
|
| abstract boolean |
supportsColumnAliasing()
Retrieves whether this database supports column aliasing.
|
| abstract boolean |
supportsConvert(int fromType, int toType)
Retrieves whether this database supports the JDBC scalar function
CONVERT for conversions between the JDBC types fromType
and toType. |
| abstract boolean |
supportsConvert()
Retrieves whether this database supports the JDBC scalar function
CONVERT for the conversion of one JDBC type to another. |
| abstract boolean |
supportsCoreSQLGrammar()
Retrieves whether this database supports the ODBC Core SQL grammar.
|
| abstract boolean |
supportsCorrelatedSubqueries()
Retrieves whether this database supports correlated subqueries.
|
| abstract boolean |
supportsDataDefinitionAndDataManipulationTransactions()
Retrieves whether this database supports both data definition and
data manipulation statements within a transaction.
|
| abstract boolean |
supportsDataManipulationTransactionsOnly()
Retrieves whether this database supports only data manipulation
statements within a transaction.
|
| abstract boolean |
supportsDifferentTableCorrelationNames()
Retrieves whether, when table correlation names are supported, they
are restricted to being different from the names of the tables.
|
| abstract boolean |
supportsExpressionsInOrderBy()
Retrieves whether this database supports expressions in
ORDER BY lists. |
| abstract boolean |
supportsExtendedSQLGrammar()
Retrieves whether this database supports the ODBC Extended SQL grammar.
|
| abstract boolean |
supportsFullOuterJoins()
Retrieves whether this database supports full nested outer joins.
|
| abstract boolean |
supportsGetGeneratedKeys()
Retrieves whether auto-generated keys can be retrieved after
a statement has been executed
|
| abstract boolean |
supportsGroupBy()
Retrieves whether this database supports some form of
GROUP BY clause. |
| abstract boolean |
supportsGroupByBeyondSelect()
Retrieves whether this database supports using columns not included in
the
SELECT statement in a GROUP BY clause
provided that all of the columns in the SELECT statement
are included in the GROUP BY clause. |
| abstract boolean |
supportsGroupByUnrelated()
Retrieves whether this database supports using a column that is
not in the
SELECT statement in a
GROUP BY clause. |
| abstract boolean |
supportsIntegrityEnhancementFacility()
Retrieves whether this database supports the SQL Integrity
Enhancement Facility.
|
| abstract boolean |
supportsLikeEscapeClause()
Retrieves whether this database supports specifying a
LIKE escape clause. |
| abstract boolean |
supportsLimitedOuterJoins()
Retrieves whether this database provides limited support for outer
joins.
|
| abstract boolean |
supportsMinimumSQLGrammar()
Retrieves whether this database supports the ODBC Minimum SQL grammar.
|
| abstract boolean |
supportsMixedCaseIdentifiers()
Retrieves whether this database treats mixed case unquoted SQL identifiers as
case sensitive and as a result stores them in mixed case.
|
| abstract boolean |
supportsMixedCaseQuotedIdentifiers()
Retrieves whether this database treats mixed case quoted SQL identifiers as
case sensitive and as a result stores them in mixed case.
|
| abstract boolean |
supportsMultipleOpenResults()
Retrieves whether it is possible to have multiple
ResultSet objects
returned from a CallableStatement object
simultaneously. |
| abstract boolean |
supportsMultipleResultSets()
Retrieves whether this database supports getting multiple
ResultSet objects from a single call to the
method execute. |
| abstract boolean |
supportsMultipleTransactions()
Retrieves whether this database allows having multiple
transactions open at once (on different connections).
|
| abstract boolean |
supportsNamedParameters()
Retrieves whether this database supports named parameters to callable
statements.
|
| abstract boolean |
supportsNonNullableColumns()
Retrieves whether columns in this database may be defined as non-nullable.
|
| abstract boolean |
supportsOpenCursorsAcrossCommit()
Retrieves whether this database supports keeping cursors open
across commits.
|
| abstract boolean |
supportsOpenCursorsAcrossRollback()
Retrieves whether this database supports keeping cursors open
across rollbacks.
|
| abstract boolean |
supportsOpenStatementsAcrossCommit()
Retrieves whether this database supports keeping statements open
across commits.
|
| abstract boolean |
supportsOpenStatementsAcrossRollback()
Retrieves whether this database supports keeping statements open
across rollbacks.
|
| abstract boolean |
supportsOrderByUnrelated()
Retrieves whether this database supports using a column that is
not in the
SELECT statement in an
ORDER BY clause. |
| abstract boolean |
supportsOuterJoins()
Retrieves whether this database supports some form of outer join.
|
| abstract boolean |
supportsPositionedDelete()
Retrieves whether this database supports positioned
DELETE
statements. |
| abstract boolean |
supportsPositionedUpdate()
Retrieves whether this database supports positioned
UPDATE
statements. |
| abstract boolean |
supportsResultSetConcurrency(int type, int concurrency)
Retrieves whether this database supports the given concurrency type
in combination with the given result set type.
|
| abstract boolean |
supportsResultSetHoldability(int holdability)
Retrieves whether this database supports the given result set holdability.
|
| abstract boolean |
supportsResultSetType(int type)
Retrieves whether this database supports the given result set type.
|
| abstract boolean |
supportsSavepoints()
Retrieves whether this database supports savepoints.
|
| abstract boolean |
supportsSchemasInDataManipulation()
Retrieves whether a schema name can be used in a data manipulation statement.
|
| abstract boolean |
supportsSchemasInIndexDefinitions()
Retrieves whether a schema name can be used in an index definition statement.
|
| abstract boolean |
supportsSchemasInPrivilegeDefinitions()
Retrieves whether a schema name can be used in a privilege definition statement.
|
| abstract boolean |
supportsSchemasInProcedureCalls()
Retrieves whether a schema name can be used in a procedure call statement.
|
| abstract boolean |
supportsSchemasInTableDefinitions()
Retrieves whether a schema name can be used in a table definition statement.
|
| abstract boolean |
supportsSelectForUpdate()
Retrieves whether this database supports
SELECT FOR UPDATE
statements. |
| abstract boolean |
supportsStatementPooling()
Retrieves whether this database supports statement pooling.
|
| abstract boolean |
supportsStoredFunctionsUsingCallSyntax()
Retrieves whether this database supports invoking user-defined or vendor functions
using the stored procedure escape syntax.
|
| abstract boolean |
supportsStoredProcedures()
Retrieves whether this database supports stored procedure calls
that use the stored procedure escape syntax.
|
| abstract boolean |
supportsSubqueriesInComparisons()
Retrieves whether this database supports subqueries in comparison
expressions.
|
| abstract boolean |
supportsSubqueriesInExists()
Retrieves whether this database supports subqueries in
EXISTS expressions. |
| abstract boolean |
supportsSubqueriesInIns()
Retrieves whether this database supports subqueries in
IN expressions. |
| abstract boolean |
supportsSubqueriesInQuantifieds()
Retrieves whether this database supports subqueries in quantified
expressions.
|
| abstract boolean |
supportsTableCorrelationNames()
Retrieves whether this database supports table correlation names.
|
| abstract boolean |
supportsTransactionIsolationLevel(int level)
Retrieves whether this database supports the given transaction isolation level.
|
| abstract boolean |
supportsTransactions()
Retrieves whether this database supports transactions.
|
| abstract boolean |
supportsUnion()
Retrieves whether this database supports SQL
UNION. |
| abstract boolean |
supportsUnionAll()
Retrieves whether this database supports SQL
UNION ALL. |
| abstract boolean |
updatesAreDetected(int type)
Retrieves whether or not a visible row update can be detected by
calling the method
ResultSet.rowUpdated. |
| abstract boolean |
usesLocalFilePerTable()
Retrieves whether this database uses a file for each table.
|
| abstract boolean |
usesLocalFiles()
Retrieves whether this database stores tables in a local file.
|
Inherited Method Summary
Constants
public static final short attributeNoNulls
Indicates that NULL values might not be allowed.
A possible value for the column
NULLABLE in the ResultSet object
returned by the method getAttributes.
Constant Value:
0
public static final short attributeNullable
Indicates that NULL values are definitely allowed.
A possible value for the column NULLABLE
in the ResultSet object
returned by the method getAttributes.
Constant Value:
1
public static final short attributeNullableUnknown
Indicates that whether NULL values are allowed is not
known.
A possible value for the column NULLABLE
in the ResultSet object
returned by the method getAttributes.
Constant Value:
2
public static final int bestRowNotPseudo
Indicates that the best row identifier is NOT a pseudo column.
A possible value for the column
PSEUDO_COLUMN
in the ResultSet object
returned by the method getBestRowIdentifier.
Constant Value:
1
public static final int bestRowPseudo
Indicates that the best row identifier is a pseudo column.
A possible value for the column
PSEUDO_COLUMN
in the ResultSet object
returned by the method getBestRowIdentifier.
Constant Value:
2
public static final int bestRowSession
Indicates that the scope of the best row identifier is the remainder of the current session.
A possible value for the column
SCOPE
in the ResultSet object
returned by the method getBestRowIdentifier.
Constant Value:
2
public static final int bestRowTemporary
Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.
A possible value