It enhanced the capabilities of PL or SQL tables with the ability to define new methods, and it also enabled programmers to access the file system from within the DBA. File I or O could be done using the UTL_FILE package. Oracle data base administrator 8.x was a major breakthrough in the Oracle DBA history with the introduction of objects and Java in the DBA. PL or SQL 8.x was released along with Oracle data base administrator 8.x and included major features such as native dynamic SQL, Java stored procedures, and system- and schema-level DBA triggers. The primary advantage of PL or SQL is its capability to define and implement 3GL constructs with embedded SQL statements. Using PL or SQL, you can implement standard 3GL capabilities, such as support for BOOLEAN data types; sequential, conditional, and iterative logic; arrays and subprograms; and object-oriented features. And you can do this side by side with SQL. This support for SQL in PL or SQL makes PL or SQL powerful.
The primary advantage of PL or SQL is its capability to define and implement 3GL constructs with embedded SQL statements. Using PL or SQL, you can implement standard 3GL capabilities, such as support for BOOLEAN data types; sequential, conditional, and iterative logic; arrays and subprograms; and object-oriented features. And you can do this side by side with SQL. This support for SQL in PL or SQL makes PL or SQL powerful. The capability to define 3GL constructs is primarily beneficial when you use PL or SQL in writing applications that mix and match business logic that’s complicated and necessary. Also, PL or SQL is the primary procedural language for Oracle DBA client-side tools such as Oracle data base administrator Forms and Oracle data base administrator Reports. Programs written in PL or SQL are hardware independent and operating system independent.