How do you return a result set from a stored procedure?

How do you return a result set from a stored procedure?

To return a result set from an SQL procedure:

1. Specify the DYNAMIC RESULT SETS clause in the CREATE PROCEDURE statement.
2. DECLARE the cursor using the WITH RETURN clause.
3. Open the cursor in the SQL procedure.
4. Keep the cursor open for the client application – do not close it.

Can a stored procedure return multiple result sets SQL Server?

A procedure can return more than one result set to the calling environment. By default, Interactive SQL does not show multiple result sets. To enable multiple result set functionality, you can use the Options window in Interactive SQL, or you can execute a SQL statement to set the isql_show_multiple_result_sets option.

How can we retrieve multiple result sets in stored procedure?

Execute the above created callable statement using the executeQuery() method this returns a result set object. //Executing the CallableStatement ResultSet rs1 = cstmt. executeQuery(); If this procedure returns more result-set objects move to the next result-set using the cstmt.

When to return data from a stored procedure?

When returned, the cursor position is set before the first row. For a forward-only cursor, if the cursor is positioned beyond the end of the last row when the procedure exits, an empty result set is returned to the calling batch, procedure, or trigger. Note. An empty result set is not the same as a null value.

How to call a stored procedure in JDBC?

When you call this kind of stored procedure by using the JDBC driver, you have to use the call SQL escape sequence in conjunction with the prepareCall method of the SQLServerConnection class. The syntax for the call escape sequence with a return status parameter is the following: { [?=]call procedure-name [ ( [parameter] [, [parameter]]…)]}

How is the result set returned to the caller?

The result set RS returned to the caller consists of rows from 6 through 100 of RS, and the cursor in the caller is positioned before the first row of RS. For a forward-only cursor, if the cursor is positioned before the first row when the procedure exits, the entire result set is returned to the calling batch, procedure, or trigger.

What happens to an empty result set in SQL?

An empty result set is not the same as a null value. For a scrollable cursor, all the rows in the result set are returned to the calling batch, procedure, or trigger when the procedure exits. When returned, the cursor position is left at the position of the last fetch executed in the procedure.