Add a comment | 1 Answer Active Oldest Votes. All the SQL statements must be delimited between EXEC SQL and. Following are rules to be followed while coding a COBOL-DB2 program −. An additional INTO clause is placed in the SELECT statement.
For example, the output of a query is directed to a predefined set of variables which are referred as Host Variables. The purpose of this IMS DB and COBOL program is to read IMS DB segments and create a sequential (flat) file that will be an input to the IMS DB-DB2 conversion program. COBOL sample program on how to access IMS segments. db2 system is almost similar to sql with some added features to support large scale mainframe. 
data in db2 system is stored in form of table, that contains rows (tuples) and columns (attributes). db2 stands for ‘data base 2’ and it is ibm designed relational database management system.
Cobol program can interface with db2 database. 
Sample COBOL, JCL, VSAM, DB2 & CICS PROGRAMS. Welcome to IBM Mainframes online training.
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