PL/SQL Cursor
Oracle uses a special memory space called a context area for storing and retrieving information. The context area contains all the details related to the database. The cursor is the virtual pointer to the context area, in the database. The cursor helps you to process through the rows one by one. There are two types of cursors Implicit cursor and Explicit cursor.
- Implicit Cursor: In the implicit cursor SELECT INTO, INSERT, UPDATE, and DELETE queries are used, without declaring the cursor with a cursor name in the declaration block.
- Explicit Cursor: In explicit cursor, the cursor is declared with a particular name to fetch or add data through the rows one by one. It is declared in the declaration section of the PL/SQL block.
PL/SQL Parameterized Cursors
PL/SQL stands for Procedural Language/ Structured Query Language. It has block structure programming features. With PL/SQL, you can fetch data from the table, add data to the table, make decisions, perform repetitive tasks, and handle errors.PL/SQL supports SQL queries. PL/SQL contains declaration block, begin block, exception block, and end block. Declare and exception blocks are optional.
In this article, we will explore PL/SQL Cursors and their parameters, providing insights into the declaration of explicit cursors and the step-by-step process involved. The focus will then shift to the dynamic capabilities of PL/SQL Cursors with Parameters, demonstrating how to create adaptable SQL queries.
Contact Us