getVersionColumns Method (SQLServerDatabaseMetaData)

Άρθρο
11/18/2022

Retrieves a description of the columns of a table that is automatically updated when any value in a row is updated.

Syntax

  
public java.sql.ResultSet getVersionColumns(java.lang.String catalog,  
                                            java.lang.String schema,  
                                            java.lang.String table)

Parameters

catalog

A String that contains the catalog name.

schema

A String that contains the schema name pattern.

table

A String that contains the table name.

Return Value

A SQLServerResultSet object.

Exceptions

SQLServerException

Remarks

This getVersionColumns method is specified by the getVersionColumns method in the java.sql.DatabaseMetaData interface.

The result set returned by the getVersionColumns method will contain the following information:

Name	Type	Description
SCOPE	short	Not supported by the JDBC driver.
COLUMN_NAME	String	The column name.
DATA_TYPE	short	The SQL data type from java.sql.Types.
TYPE_NAME	String	The name of the data type.
COLUMN_SIZE	int	The precision of the column.
BUFFER_LENGTH	int	The length of the column in bytes.
DECIMAL_DIGITS	short	The scale of the column.
PSEUDO_COLUMN	short	Indicates if the column is a pseudo column. It can be one of the following values: versionColumnUnknown (0) versionColumnNotPseudo (1) versionColumnPseudo (2)

Note

For more information about the data returned by the getVersionColumns method, see "sp_datatype_info (Transact-SQL)" in SQL Server Books Online.

Example

The following example demonstrates how to use the getVersionColumns method to return information about the columns that are automatically updated in the Person.Contact table in the AdventureWorks2022 sample database.

public static void executeGetVersionColumns(Connection con) {  
   try {  
      DatabaseMetaData dbmd = con.getMetaData();  
      ResultSet rs = dbmd.getVersionColumns("AdventureWorks", "Person", "Contact");  
      ResultSetMetaData rsmd = rs.getMetaData();  
  
      // Display the result set data.  
      int cols = rsmd.getColumnCount();  
      while(rs.next()) {  
         for (int i = 1; i <= cols; i++) {  
            System.out.println(rs.getString(i));  
         }  
      }  
      rs.close();  
   }   
  
   catch (Exception e) {  
      e.printStackTrace();  
   }  
}

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