What is the Cursor Variable with REF CURSOR?
Cursor variables in PL/SQL provide a means to work with dynamic SQL queries and results. Unlike explicit cursors, cursor variables allow the definition of a cursor without specifying the SQL query at compile-time. This flexibility is particularly useful when dealing with varying queries or when the query needs to be determined dynamically during runtime. REF CURSORs, associated with cursor variables enable the retrieval of query results. The below method helps to understand the Cursor Variable with REF CURSOR very effectively.
- Using Cursor Variable to Fetch Data Dynamically
- Using Passing Cursor Variable as Parameter to a Procedure
Let’s understand both methods with the help of examples
PL/SQL Cursor Variable with REF CURSOR
Cursor variables, also known as REF CURSORs, in PL/SQL, provide a dynamic and flexible means to handle query results. A cursor variable is a reference to a cursor, which can be opened, fetched, and closed dynamically at runtime.
In this article, we’ll delve into the usage of cursor variables with REF CURSOR in PL/SQL and showcase their versatility in managing dynamic queries and result sets.
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