What is PL SQL Oracle?
What is PL SQL Oracle?
PL/SQL is a procedural language designed specifically to embrace SQL statements within its syntax. PL/SQL program units are compiled by the Oracle Database server and stored inside the database. And at run-time, both PL/SQL and SQL run within the same server process, bringing optimal efficiency.
Which function will you use to transfer a PL SQL table log to a database table?
To transfer a PL/SQL table log a database log table function “PROCEDURE ps2db” is used.
What are data types in PL SQL?
PL/SQL has two kinds of data types: scalar and composite. The scalar types are types that store single values such as number, Boolean, character, and datetime whereas the composite types are types that store multiple values, for example, record and collection.
What is trigger in Plsql?
A PL/SQL trigger is a named database object that encapsulates and defines a set of actions that are to be performed in response to an insert, update, or delete operation against a table. Triggers are created using the PL/SQL CREATE TRIGGER statement.
What is while loop in Plsql?
PL/SQL while loop is used when a set of statements has to be executed as long as a condition is true, the While loop is used. The condition is decided at the beginning of each iteration and continues until the condition becomes false. Syntax of while loop: WHILE
What is the difference between Oracle and PL SQL?
Oracle SQL is Oracle’s version of the structured query language. On the other hand, PL/SQL is a Procedural Language developed by Oracle is an extension of Oracle SQL having the functionalities of functions, control structures, and triggers.
What is bulk collection in Oracle PL SQL?
A bulk collect is a method of fetching data where the PL/SQL engine tells the SQL engine to collect many rows at once and place them in a collection. The SQL engine retrieves all the rows and loads them into the collection and switches back to the PL/SQL engine. All the rows are retrieved with only 2 context switches.