Informix Error -958
-958 Temp table <table-name> already exists in session. </table-name>
This statement tries to create a table with the name that is shown, but a temporary table with that name already exists. Only one temporary table with a given name can exist in a session.
Check the spelling of the name. If the name is spelled as you intended, check that a temporary table with the given name does not exist in the session. To review the names of temporary tables, query the systabnames table as follows:
SELECT dbsname, tabname FROM sysmaster:systabnames WHERE tabname = <table-name> </table-name>
If the name exists, review this name by querying the systables table in <dbsname>: </dbsname>
SELECT tabname FROM <dbsname>:systables WHERE tabname = <table-name> </table-name></dbsname>
If the name does not exist in systables (" No rows found "), this table is a temporary table.