getProcedureColumns Method (SQLServerDatabaseMetaData)

Άρθρο
11/18/2022

Retrieves a description of the stored procedure parameters and result columns.

Syntax

  
public java.sql.ResultSet getProcedureColumns(java.lang.String sCatalog,  
                                              java.lang.String sSchema,  
                                              java.lang.String proc,  
                                              java.lang.String col)

Parameters

sCatalog

A String that contains the catalog name. Providing a null to this parameter indicates that the catalog name does not need to be used.

sSchema

A String that contains the schema name pattern. Providing a null to this parameter indicates that the schema name does not need to be used.

proc

A String that contains the procedure name pattern.

col

A String that contains the column name pattern. Providing a null to this parameter returns a row for each column.

Return Value

A SQLServerResultSet object.

Exceptions

SQLServerException

Remarks

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

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

Name	Type	Description
PROCEDURE_CAT	String	The name of the database in which the specified stored procedure resides.
PROCEDURE_SCHEM	String	The schema for the stored procedure.
PROCEDURE_NAME	String	The name of the stored procedure.
COLUMN_NAME	String	The name of the column.
COLUMN_TYPE	short	The type of the column. It can be one of the following values: procedureColumnUnknown (0) procedureColumnIn (1) procedureColumnInOut (2) procedureColumnOut (4) procedureColumnReturn (5) procedureColumnResult (3)
DATA_TYPE	smallint	The SQL data type from java.sql.Types.
TYPE_NAME	String	The name of the data type.
PRECISION	int	The total number of significant digits.
LENGTH	int	The length of the data in bytes.
SCALE	short	The number of digits to the right of the decimal point.
RADIX	short	The base for numeric types.
NULLABLE	short	Indicates if the column can contain a null value. It can be one of the following values: procedureNoNulls (0) procedureNullable (1) procedureNullableUnknown (2)
REMARKS	String	The description of the procedure column. Note: SQL Server does not return a value for this column.
COLUMN_DEF	String	The default value of the column.
SQL_DATA_TYPE	smallint	This column is the same as the DATA_TYPE column, except for the datetime and ISO interval data types.
SQL_DATETIME_SUB	smallint	The datetime ISO interval subcode if the value of SQL_DATA_TYPE is SQL_DATETIME or SQL_INTERVAL. For data types other than datetime and ISO interval, this column is NULL.
CHAR_OCTET_LENGTH	int	The maximum number of bytes in the column.
ORDINAL_POSITION	int	The index of the column within the table.
IS_NULLABLE	String	Indicates if the column allows null values.
SS_TYPE_CATALOG_NAME	String	The name of the catalog that contains the user-defined type (UDT).
SS_TYPE_SCHEMA_NAME	String	The name of the schema that contains the user-defined type (UDT).
SS_UDT_CATALOG_NAME	String	The fully-qualified name user-defined type (UDT).
SS_UDT_SCHEMA_NAME	String	The name of the catalog where an XML schema collection name is defined. If the catalog name cannot be found, this variable contains an empty string.
SS_UDT_ASSEMBLY_TYPE_NAME	String	The name of the schema where an XML schema collection name is defined. If the schema name cannot be found, this is an empty string.
SS_XML_SCHEMACOLLECTION_CATALOG_NAME	String	The name of an XML schema collection. If the name cannot be found, this is an empty string.
SS_XML_SCHEMACOLLECTION_SCHEMA_NAME	String	The name of the catalog that contains the user-defined type (UDT).
SS_XML_SCHEMACOLLECTION_NAME	String	The name of the schema that contains the user-defined type (UDT).
SS_DATA_TYPE	tinyint	The SQL Server data type that is used by extended stored procedures. Note: For more information about the data types returned by SQL Server, see "Data Types (Transact-SQL)" in SQL Server Books Online.

Note

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

Example

The following example demonstrates how to use the getProcedureColumns method to return information about the uspGetBillOfMaterials stored procedure in the AdventureWorks2022 sample database.

public static void executeGetProcedureColumns(Connection con) {  
   try {  
      DatabaseMetaData dbmd = con.getMetaData();  
      ResultSet rs = dbmd.getProcedureColumns(null, null, "uspGetBillOfMaterials", null);  
      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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