![]() What is cursor in SQL with example?Ī SQL cursor is a database object that retrieves data from result sets one row at a time. The nested cursor is explicitly closed by the user. For example, if the cursor expression appears in a select list, a nested cursor will be opened for each row fetched by the query. ![]() Fetch the data into local variables as needed from the cursor, one row at a time.Ī nested cursor is implicitly opened when the cursor expression is evaluated.Open the cursor to establish the result set.Declare a cursor that defines a result set.To use cursors in SQL procedures, you need to do the following: ![]() That way, the second cursor will use the new variable values from the first cursor. The trick to declaring a cursor within a cursor is that you need to continue to open and close the second cursor each time a new record is retrieved from the first cursor. How can I use cursor inside cursor in SQL? Which SQL command is used to iterate through each row in a cursor?.How can I use cursor inside cursor in SQL?.
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