Example: Stored Procedure and Embedded SQL Input Arguments - Analytics Database - Teradata Vantage

SQL Data Manipulation Language
Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-12-13
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lifecycle
latest
Product Category
Teradata Vantage™

Consider the stored procedure spSample2 defined in Example: Input and Output Arguments in BTEQ and CLIv2. The arguments can be specified in any of the formats shown:

Format 1:

Only literals or constant expressions are specified as arguments for the parameters:
  • In a stored procedure:
         CALL spSample2(1, 2, 3 + 4);
   
  • In a C program using embedded SQL:
         EXEC SQL CALL spSample2(1, 2, 3 + 4);

Format 2:

The application variables contain the values that are passed as arguments:
  • In a stored procedure:
         SET AppVar1 = 10;
     SET AppVar2 = 30;
     SET AppVar3 = 40;
     CALL spSample2(:AppVar1, :AppVar1 + :AppVar2, CAST(:AppVar3 AS
     FORMAT 'Z,ZZ9'));
  • In a C program using embedded SQL:
         AppVar1 = 10;
     AppVar2 = 30;
     AppVar3 = 40;
     EXEC SQL CALL spSample2(:AppVar1, :AppVar1 + :AppVar2,
                   CAST(:AppVar3 AS FORMAT 'Z,ZZ9'));

Format 3:

The combination of the application variables (AppVar1, AppVar2, and AppVar3) and values/expressions are specified as arguments:
  • In a stored procedure:
         SET AppVar1 = 10;
     SET AppVar2 = 30;
     SET AppVar3 = 40;
     CALL spSample2(:AppVar1, 3 + :AppVar2, 3 + 4 + :AppVar3);
   
  • In a C program using embedded SQL:
         AppVar1 = 10;
     AppVar2 = 30;
     AppVar3 = 40;
     EXEC SQL CALL spSample2(:AppVar1, 3 + :AppVar2, 3 + 4
                   + :AppVar3);

No output parameters are returned from the stored procedure using this format, so the ACTIVITY_COUNT is returned as 0 in the success response.