What is Precompilation process in Db2?

What is Precompilation process in Db2?

Precompilation is the process through which the SQL statements used in the COBOL-DB2 program are replaced by appropriate COBOL calls. The precompilation is necessary before the actual compilation because the COBOL compiler cannot recognize the DB2 SQL statements and will throw errors due to them.

What is Db2 bind process?

In the bind process, the SQL statements in the DBRM are put into an operational (“bound”) form, by being translated into the control structures that DB2 uses when it runs SQL statements.

What is the output of Precompilation process?

The major output from the Db2 precompiler is a database request module (DBRM). However, the Db2 precompiler also produces modified source statements, a list of source statements, a list of statements that refer to host names and columns, and diagnostics.

What is the input for BIND process?

Primary input to the bind process consists of a sequential data set, members from a PDS or PDSE, or an in-stream data set. The primary input must be composed of one or more separately compiled object modules or bind control statements.

What is bind in Db2 Cobol?

Instructs the DB2 ECM to create a DBRM file to use for manual binding. Also optionally used to specify an alternative filename for and/or path to the created DBRM file.

What is Dbrm in Db2?

DBRM stands for Database Request Module. This is the traditional DB2® serialized representation of the SQL statements in a program.

What is Dbrm in DB2?

What is bind in DB2 Cobol?

What are locks in Db2?

DB2 locks prevent one program from accessing data that has been changed, but not yet committed, by another program. Locking process is controlled by DB2’s IRLM (Inter System Resource Lock Manager). However, whenever practical, DB2 tries to lock pages without going to the IRLM. This type of lock is called a latch.