Give the name of some fields form SQLCA.

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The following three are the fields from SQLCA:

  • SQLCODE
  • SQLERRM
  • SQLERRD

The SQLCA (SQL Communication Area) is a data structure used in DB2 to provide feedback about the execution of SQL statements. It contains various fields that hold information about the success or failure of SQL operations. Here are some common fields found in the SQLCA:

  1. SQLCODE: This field contains the SQL return code, indicating the success or failure of the SQL statement. A value of 0 typically means success, while negative values represent errors.
  2. SQLERRMC: This field provides additional information about errors. It might contain specific error messages or tokens that help in diagnosing issues.
  3. SQLERRP: This field contains the name of the program or module where an error occurred.
  4. SQLERRD: This is an array of integers providing additional details about certain types of errors.
  5. SQLERRS: A field indicating the number of errors that occurred during the execution of the SQL statement.
  6. SQLSTATE: A five-character code that provides more detailed information about the SQL error. It is often used for programmatic error handling.

Here’s an example of using these fields in a COBOL program:

EXEC SQL
INSERT INTO EMPLOYEE (EMP_ID, EMP_NAME, EMP_SALARY)
VALUES (:emp_id, :emp_name, :emp_salary)
END-EXEC.IF SQLCODE = 0
DISPLAY ‘Insert successful’
ELSE
DISPLAY ‘Error code: ‘ SQLCODE
DISPLAY ‘SQLSTATE: ‘ SQLSTATE
DISPLAY ‘Error message: ‘ SQLERRMC
END-IF.

This is just a basic example, and the usage may vary depending on the specific scenario and programming language used. Make sure to refer to the DB2 documentation or specific programming language documentation for more details.