Source statements processed by the precompiler are written to an output source file.
In the precompiler-changed source code, SQL statements have been converted to comments and calls to the SQL runtime. Includes that are processed by SQL are expanded.
The output source file is specified on the CRTSQLxxx command in the TOSRCFILE parameter. For languages other than C and C++, the default file is QSQLTEMP (QSQLTEMP1 for ILE RPG) in the QTEMP library. For C and C++ when *CALC is specified as the output source file, QSQLTEMP will be used if the source file's record length is 92 or less. For a C or C++ source file where the record length is greater than 92, the output source file name will be generated as QSQLTxxxxx, where xxxxx is the record length. The name of the output source file member is the same as the name specified in the PGM or OBJ parameter of the CRTSQLxxx command. This member cannot be changed before being used as input to the compiler. When SQL creates the output source file, it uses the CCSID value of the source file as the CCSID value for the new file.
If the precompile generates output in a source file in QTEMP, the file can be moved to a permanent library after the precompile if you want to compile at a later time. You cannot change the records of the source member, or the attempted compile fails.
The source member that is generated by SQL as the result of the precompile should never be edited and reused as an input member to another precompile step. The additional SQL information that is saved with the source member during the first precompile will cause the second precompile to work incorrectly. Once this information is attached to a source member, it stays with the member until the member is deleted.
The SQL precompiler uses the CRTSRCPF command to create the output source file. If the defaults for this command have changed, then the results may be unpredictable. If the source file is created by the user, not the SQL precompiler, the file's attributes may be different as well. It is recommended that the user allow SQL to create the output source file. Once it has been created by SQL, it can be reused on later precompiles.