What does Sqlcode 0 mean?
SQLCODE=0 indicates successful completion of an SQL operation. For a SELECT statement, this usually means the successful retrieval of data from a table. For an UPDATE or DELETE these include: the specified table contains no data; or the table contains no row of data that satisfies the WHERE clause criteria.
What Sqlcode means?
SQLCODE is an integer variable in which the DBMS returns the status of the last SQL statement executed. The values returned in the standalone SQLCODE variable are the same as those returned in the sqlcode member of the SQLCA structure. The value of SQLCODE is meaningful only in the context of a session.
What is SQL mainframe code?
SQLCODE is an element of the SQLCA that stores a warning or return code from an SQL process. If you are running in DB2 mode, the value in SQLCODE is a DB2 warning or return code. To determine the appropriate error code, you must translate it into an XDB error message ID using the formula listed in the table below.
What is SQL error?
SQL keyword errors occur when one of the words that the SQL query language reserves for its commands and clauses is misspelled. For example, writing “UPDTE” instead of “UPDATE” will produce this type of error.
Which columns are not good for indexing?
If you create an index such as INDEX(first_name, last_name), don’t create INDEX(first_name). However, “index prefix” or “multi-columns index” is not recommended in all search cases. Use the NOT NULL attribute for those columns in which you consider the indexing, so that NULL values will never be stored.
What is SQL error state?
SQL ERROR STATE is one of the SQL System Function which returns the state of the error (if occurred). This ERROR STATE. function works within the scope of a CATCH block. If you call this function outside the CATCH block, it will return NULL. For example, we write a series of statements inside the TRY block.
What does SQL error code?
SQL Error Code is used on a day to day basis for the diagnosis of programming failures as a result of SQL calls by DB2 computer programs. An important feature of DB2 programs is the error processing. The error diagnostic containing the SQL Error Code are held in the field SQLCODE within the DB2 SQLCA block.
How do I fix a SQL error?
Syntax Errors
- Check keyword spelling by referring to the documentation for the type of SQL you are using.
- Check table spelling by referring to the database schema.
- Check column spelling by referring to the database schema or doing SELECT * FROM the table you are trying to check the column name on.
