This article has multiple issues. Unsourced material may be challenged and removed. SQL functionality with each successive release of the Oracle Database. SQL units such as oracle introduction to sql pdf, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces.
SQL also resembles Pascal in several aspects. Such objects can also persist as column values in Oracle database tables. SQLite API by including a version of SQLite in Berkeley DB. SQL code on Berkeley DB.
One can use control statements like decision making, iterative control if only SQL is to be used. SQL is basically a procedural language, which provides functionality of decision making, iteration and many more features like other procedural programming languages. SQL source code that is compiled, developed and ultimately executed on the database. SQL source program is the block, which groups together related declarations and statements. SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END.
These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. The interactive tool or program runs the block once.