SQL call level interface

DB2^® UDB call level interface (CLI) is a callable Structured Query Language (SQL) programming interface that is supported in all DB2 environments except for DB2 Universal Database for z/OS^® and DB2 Server for VSE and VM.

A callable SQL interface is a WinSock application programming interface (API) for database access that uses function calls to start dynamic SQL statements.

DB2 UDB CLI is an alternative to embedded dynamic SQL. The important difference between embedded dynamic SQL and DB2 UDB CLI is how the SQL statements are started. On the iSeries™ server, this interface is available to any of the ILE languages.

DB2 UDB CLI also provides full Level 1 Microsoft^® Open Database Connectivity (ODBC) support, plus many Level 2 functions. For the most part, ODBC is a superset of the ANS and ISO SQL CLI standard.

• What's new for V5R4
  This topic highlights numerous changes to the SQL call level interface for V5R4.
• Printable PDF
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• Get started with DB2 UDB CLI
  Learn about the basics of the DB2 UDB CLI, how it compares to embedded SQL, and how to select the best interface for your programming needs.
• Write a DB2 UDB CLI application
  Find out how you code your applications to use the DB2 CLI functions.
• DB2 UDB CLI functions
  This topic provides a description of each CLI function.
• DB2 UDB CLI include file
  The only include file used in DB2 UDB CLI is sqlcli.h.
• Run DB2 UDB CLI in server mode
  This topic is about why and how you should run your DB2 UDB CLI applications in server mode.
• Examples: DB2 UDB CLI applications
  This topic provides complete examples of DB2 UDB CLI applications.