摘要:
例如判断表print_bill中是否存在列BillMKID select count(*) from user_tab_columns where table_name=upper('print_bill') and column_name=upper('BillMKID') 阅读全文
摘要:
如何处理登录Oracle时ORA-28000: the account is locked? ORA-28000: the account is locked. 要对账户解锁,可在数据库管理员账户(sys/system)中使用“alter user”命令的account unlock子句。 如下所示: alter user username account unlock; 账户解锁后,user... 阅读全文