Category: PL/SQL

In PL/SQL, the BULK COLLECT feature is used to enhance the performance of SQL queries by fetching multiple rows at once and storing them in collections (arrays or nested tables) rather than processing one row at a time. This reduces the number of context switches between the SQL engine and the PL/SQL engine, resulting in…(Continue Reading)

In PL/SQL, the IF statement is part of control structures and is used for conditional execution of code blocks. It allows you to control the flow of your program by executing certain statements based on whether a specified condition evaluates to true or false. If the condition is false, the program moves to the next…(Continue Reading)

In Oracle PL/SQL, stored procedures are a powerful feature that allows you to encapsulate a series of SQL and procedural statements into a named block, which can then be executed as a single unit. Parameters are essential components of stored procedures, allowing you to pass values into and out of the procedure. In this context,…(Continue Reading)

In Oracle PL/SQL, a Common Table Expression (CTE) is a temporary result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement. CTEs provide a way to organize complex queries by breaking them down into smaller, more manageable parts. They are defined using the WITH clause and can include parameters to enhance…(Continue Reading)

A Common Table Expression (CTE) in Oracle PL/SQL is a named temporary result set that you can reference within a SELECT, INSERT, UPDATE, or DELETE statement. It helps in simplifying complex queries and makes the code more readable and maintainable. CTEs were introduced in Oracle 9i. Syntax Here is a basic syntax for creating a…(Continue Reading)