Introduction to DB2 UDB for iSeries Structured Query Language

These topics describe the iSeries™ server implementation of the Structured Query Language (SQL) using DB2^® UDB for iSeries and the DB2 UDB Query Manager and SQL Development Kit licensed program.

SQL manages information based on the relational model of data. SQL statements can be embedded in high-level languages, dynamically prepared and run, or run interactively. For information about embedded SQL, see Embedded SQL.

SQL consists of statements and clauses that describe what you want to do with the data in a database and under what conditions you want to do it.

SQL can access data in a remote relational database, using the IBM^® Distributed Relational Database Architecture* (DRDA*).

• SQL concepts
  DB2 UDB for iSeries SQL consists of these main parts.
• SQL objects
  SQL objects are schemas, journals, catalogs, tables, aliases, views, indexes, constraints, triggers, sequences, stored procedures, user-defined functions, user-defined types, and SQL packages. SQL creates and maintains these objects as system objects.
• Application program objects
  The process of creating a DB2 UDB for iSeries application program may result in the creation of several objects. This section briefly describes the process of creating a DB2 UDB for iSeries application.