In the singleton SELECT, you specify variables to hold the values for the columns within the selected row. The FETCH statement syntax is similar to the syntax of the singleton SELECT. Values are returned INTO a specified list of variables.
This example continues the previous example by retrieving some data:
// Go get the first row from the result set. FETCH emp_curs INTO :emp_id_var, :emp_name_var;
If at least one row can be retrieved, this FETCH places the values of the emp_id and emp_name columns from the first row in the result set into the PowerScript data variables emp_id_var and emp_name_var. Executing another FETCH statement will place the variables from the next row into specified variables.
FETCH statements typically occur in a loop that processes several rows from a result set (one row at a time): fetch the row, process the variables, and then fetch the next row.
What happens when the result set is exhausted?
FETCH returns +100 (not found) in the SQLCode property within the referenced transaction object. This is an informational return code; -1 in SQLCode indicates an error.
See also
Microsoft SQL Server FETCH NEXT
Microsoft SQL Server FETCH FIRST, FETCH PRIOR, and FETCH LAST
