DECLARE STATEMENT

The DECLARE STATEMENT statement is used for program documentation. It declares names that are used to identify prepared SQL statements.

Invocation

This statement can only be embedded in an application program. It is not an executable statement. This statement is not allowed in Java™ or REXX.

Authorization

None required.

Syntax

Read syntax diagramSkip visual syntax diagramDECLARE,statement-nameSTATEMENT

Description

statement-name
Lists one or more names that are used in your program to identify prepared SQL statements.

Example

This example shows the use of the DECLARE STATEMENT statement in a C program. 

EXEC SQL INCLUDE SQLDA;
void main () 
  {
   EXEC SQL BEGIN DECLARE SECTION ;
   char src_stmt[32000];
   char sqlda[32000]
   EXEC SQL END DECLARE SECTION ;
   EXEC SQL INCLUDE SQLCA ;
   
   strcpy(src_stmt,"SELECT DEPTNO, DEPTNAME, MGRNO \
     FROM DEPARTMENT \
     WHERE ADMRDEPT = 'A00'");

   EXEC SQL DECLARE OBJ_STMT STATEMENT;

   (Allocate storage from SQLDA)

   EXEC SQL DECLARE C1 CURSOR FOR OBJ_STMT;

   EXEC SQL PREPARE OBJ_STMT FROM :src_stmt;
   EXEC SQL DESCRIBE OBJ_STMT INTO :sqlda;

   (Examine SQLDA)  (Set SQLDATA pointer addresses)

   EXEC SQL OPEN C1;

   while (strncmp(SQLSTATE, "00000", 5) ) 
     {
     EXEC SQL FETCH C1 USING DESCRIPTOR :sqlda;

     (Print results)

     }

   EXEC SQL CLOSE C1;
   return;
   }