Example: using cob2 to compile and link under z/OS UNIX

The following examples illustrate the use of cob2.

To compile one file called alpha.cbl, enter:
```
cob2 -c alpha.cbl
```
The compiled file is named alpha.o.
To compile two files called alpha.cbl and beta.cbl, enter:
```
cob2 -c alpha.cbl beta.cbl
```
The compiled files are named alpha.o and beta.o.
To link two files, compile them without the -c option. For example, to compile and link alpha.cbl and beta.cbl and generate gamma, enter:
```
cob2 alpha.cbl beta.cbl -o gamma
```
This command creates alpha.o and beta.o, then links alpha.o, beta.o, and the COBOL libraries. If the link step is successful, it produces an executable program named gamma.
To compile alpha.cbl with the LIST and NOADATA options, enter:
```
cob2 -qlist,noadata alpha.cbl
```
To compile alpha.cbl with the SQL option so that the database request module (DBRM) is written to member "alpha" of the existing PDS data set USER.COBOL.DBRMLIB, enter:
```
cob2 -qsql alpha.cbl -o alpha -dbrmlib=USER.COBOL.DBRMLIB
```
Note: The SQL coprocessor must be in your STEPLIB in order for this to work.
To compile alpha.cbl with the SQL option so that the database request module (DBRM) is written to z/OS® UNIX file alpha.dbrm, enter:
```
cob2 -qsql alpha.cbl -o alpha -dbrmlib
```
Note: The SQL coprocessor must be in your STEPLIB in order for this to work, and you need to use the SQL coprocessor for Db2® 12 with APAR PI88171 applied.