oracle - 在过程中删除表

Question

Possible Duplicate:
Oracle: If Table Exists
Drop table if it exists

我正在尝试创建此过程，但收到错误。

CREATE OR REPLACE PROCEDURE SP_VEXISTABLA(NOMBRE IN VARCHAR2)
IS
CANTIDAD NUMBER(3);
BEGIN
SELECT COUNT(*) INTO CANTIDAD FROM ALL_OBJECTS WHERE OBJECT_NAME = NOMBRE;
IF (CANTIDAD >0) THEN
    DROP TABLE NOMBRE;
END IF;
END;

错误是:

Error(8,1): PLS-00103: Encountered the symbol "END" when expecting one of the following: ( begin case declare exit for goto if loop mod null pragma raise return select update while with << continue close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe purge.

你知道我做错了什么吗？

Answer 1

您需要将程序更改为:

CREATE OR REPLACE PROCEDURE SP_VEXISTABLA(NOMBRE IN VARCHAR2)
IS
CANTIDAD NUMBER(3);
BEGIN
SELECT COUNT(*) INTO CANTIDAD FROM USER_TABLES WHERE TABLE_NAME = NOMBRE;
IF (CANTIDAD >0) THEN
    execute immediate 'DROP TABLE ' || NOMBRE;
END IF;
END;