Fetching and updating cursors post divorce dating issues
The following diagram illustrates how to use a cursor in Postgre SQL: We will examine each step in more detail in the following sections.To access to a cursor, you need to declare a cursor variable in the declaration section of a block.This is an efficient way to return a large result set from a function.
Visit Stack Exchange Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Sign up to join this community Static Cursor doesn't allow to modify the data because it's read only, and when executed with "Where current of", it returns error as expected. But i was surprised to find that static cursor allow to modify data with variable like this.The result set in this table is used in the examples in the following sections, which illustrate both insensitive and semisensitive cursors.Summary: in this tutorial, we will show you how to use PL/pg SQL Cursor and give you some practical examples of using cursors.This can be more accurate than a searched update that uses a WHERE clause to qualify the rows to be updated.A searched update modifies multiple rows when the search condition does not uniquely identify a single row.