You may get this SQLCODE for many reasons. I don't know them all. For me this is what happened. When I tried to connect to a remote DB2 database (on LUW) from a COBOL program on the mainframe, the CONNECT was successful. However when I tried to run an SQL on that database I got this SQLCODE.
After researching for a while, I found that I had an existing SQL statement within EXEC SQL and END-EXEC. That worked good. But when I commented out one of WHERE clause statements (using * at column 7), it gave me this error. I moved the commented statement to the line after END-EXEC and it started working again.
Bottom line is DB2 doesn't like COBOL-like commented code inside EXEC SQL and END-EXEC when you are trying to run the SQL at a remote DB2 database.
