getVersionColumns(String catalog, String schema, String table)

Syntax:

ResultSet getVersionColumns(String catalog,
                            String schema,
                            String table)
                            throws SQLException

Description:

Retrieves a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.

Each column description has the following columns:

SCOPE	short	is not used
COLUMN_NAME	String	column name
DATA_TYPE	int	SQL data type from java.sql.Types
TYPE_NAME	String	Data source-dependent type name
COLUMN_SIZE	int	precision
BUFFER_LENGTH	int	length of column value in bytes
DECIMAL_DIGITS	short	scale - Null is returned for data types where DECIMAL_DIGITS is not applicable.
PSEUDO_COLUMN	short	whether this is pseudo column like an Oracle ROWID versionColumnUnknown - may or may not be pseudo column versionColumnNotPseudo - is NOT a pseudo column versionColumnPseudo - is a pseudo column

The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Parameters:

catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search

schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search

table - a table name; must match the table name as it is stored in the database

Returns:

a ResultSet object in which each row is a column description

Throws:

SQLException - if a database access error occurs