摘要： 1、oracle 数据库declare cnt number;begin select count(*)into cnt from user_tables where table_name='ENTRY_MODIFYSTATUS'; if cnt=0then execute immediate 'create table ENTRY_MODIFYSTATUS ( ENTRY_ID VARCHAR2(18) not null, APPLY_TIME DATE not null, STATUS NUMBER(2), constraint PK_ENTRY_MODIFYSTA 阅读全文