摘要:
第一步:自定义异常excp_notexists exception第二步:捕获异常begin select*** into*** from*** where ***; exception when no_data_found then raise excp_notexists;end;第三步:处理... 阅读全文
摘要:
用DBA身份登录后查找死锁:select sess.sid, sess.serial#, lo.oracle_username, lo.os_user_name, ao.object_name, lo.locked_mode from v$locked_object lo, dba_o... 阅读全文