DESCRIBE
DESCRIBE
DESCRIBE - obtain information about a prepared statement or result set
Synopsis
DESCRIBE [ OUTPUT ]prepared_nameUSING [ SQL ] DESCRIPTORdescriptor_nameDESCRIBE [ OUTPUT ]prepared_nameINTO [ SQL ] DESCRIPTORdescriptor_nameDESCRIBE [ OUTPUT ]prepared_nameINTOsqlda_name
Description
DESCRIBE
retrieves metadata information about
the result columns contained in a prepared statement, without
actually fetching a row.
Parameters
-
prepared_name -
The name of a prepared statement. This can be an SQL identifier or a host variable.
-
descriptor_name -
A descriptor name. It is case sensitive. It can be an SQL identifier or a host variable.
-
sqlda_name -
The name of an SQLDA variable.
Examples
EXEC SQL ALLOCATE DESCRIPTOR mydesc; EXEC SQL PREPARE stmt1 FROM :sql_stmt; EXEC SQL DESCRIBE stmt1 INTO SQL DESCRIPTOR mydesc; EXEC SQL GET DESCRIPTOR mydesc VALUE 1 :charvar = NAME; EXEC SQL DEALLOCATE DESCRIPTOR mydesc;
Compatibility
DESCRIBE
is specified in the SQL standard.