What is dynamic cursor in Oracle?
It supports for only value,in the way you used.. You need to specify it like IN (var1, var2) ; Without knowing you , you have used bind variables. One workaround is use REFCURSOR By forming a query string dynamically. DECLARE VAR1 VARCHAR2(500); CUR1 SYs_REFCURSOR; QUERY_STRING VARCHAR2(2000) := ‘SELECT T.
What is cursor explain static and dynamic cursor?
A static cursor supports both Relative and Absolute Positioning whereas a Dynamic Cursor supports only Relative Positioning. •A Static Cursor can be used for Bookmarking purposes as the data returned is static whereas a Dynamic Cursor can’t be used for the same.
How to use a cursor variable in a dynamic query?
The data server supports dynamic queries through the OPEN FOR statement in PL/SQL contexts. Specifies an identifier for a cursor variable that was previously declared within a PL/SQL context. Specifies a string literal or string variable that contains a SELECT statement (without the terminating semicolon).
How to define a reference cursor in SQL?
You can declare a reference cursor type and a cursor variable based on that type. Then you define a select statement that the ref cursor will represent using a bind variable in the place of the dynamic table name you get from the outer cursor. Open the ref cursor for the sql and populate the bind variable as you go with the ‘USING’ clause.
What’s the difference between dynamic and static cursors in SQL?
Dynamic Cursor in SQL Server. The SQL Dynamic Cursors are exactly opposite to Static Cursors, and you can use this cursor to perform INSERT, DELETE, and UPDATE operations. Unlike static cursors, all the changes made in the Dynamic cursor will reflect the Original data.
How to fetch the next record from dynamic cursor?
The below statement will fetch the next record from dynamic_employee_cursor into already declared variables. Then, we used the WHILE LOOP to loop over the cursor elements, and within the loop, FETCH_STATUS is used to check the status of the FETCH statement.