CLOSE cursor_name

This statement closes a previously opened cursor. 此语句关闭以前打开的指针。For an example, see Section 13.6.6, “Cursors”.有关示例，请参阅第13.6.6节，“指针”。

An error occurs if the cursor is not open.如果光标未打开，则会发生错误。

If not closed explicitly, a cursor is closed at the end of the BEGIN ... END block in which it was declared.如果没有显式关闭，则在其中声明的BEGIN ... END块结束时关闭指针。