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a cursor variable is a variable that references to a cursor. different from implicit and explicit cursors, a cursor variable is not tied to any specific query. the most important benefit of a cursor variable is that it enables passing the result of a query between pl/sql programs.
to declare a cursor variable, you use the ref cursor is the data type. this form of cursor variable called strong typed ref cursor because the cursor variable is always associated with a specific record structure, or type. starting from oracle 9i, you can use sys_refcursor, which is a predefined weak typed ref cursor, to declare a weak ref cursor as follows: the following function gets all direct reports of a manager based on the manager id from the employees table in the sample database.
the following shows an example of a strong ref cursor . declare type customer_t is ref cursor return customers%rowtype; c_customer returning ref cursors from pl/sql : functions, procedures and implicit the example below uses a ref cursor to return a subset of the records in the emp this example demonstrates how to define and open a ref cursor variable, and then pass it as a procedure parameter., oracle ref cursor dynamic sql, oracle ref cursor dynamic sql, oracle ref cursor for loop, oracle cursor, pl/sql function returning cursor.
pl/sql ref cursors examples. a ref cursor is a variable, the example below attempts to create a cursor %rowtype variable for processing. sql> declare the following is an example of a cursor variable declaration. declare. type emp_cur_type is ref cursor return emp%rowtype;. my_rec a ref cursor is a pl/sql datatype that you can use in a query to fetch data. in this example, you will learn how to use ref cursor s in reports builder , pl/sql procedure return cursor, oracle select from procedure ref cursor, oracle select from procedure ref cursor, out sys_refcursor, oracle access sys_refcursor
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