1. 查找外键约束
select'alter table ' || table_name ||oracle账号 ' enable constraint ' || constraint_name || ';'from user_constraints where constraint_type = 'R';
2. 重新分析表
select'analyze table ' || t.TABLE_NAME || ' compute statistics for table; 'from user_tables t order by t.NUM_ROWS desc;
3. 空表分配空间
select'alter table '||table_name||' allocate extent;' from user_tables wherenum_rows=0;
4.imp、exp导入导出
impomr/bsoft@bshrp56 file=F:\wud\omr20180506.dmp fromuser=omr TOUSER=omrlog=omr_imp.txt
impUPDATE/UPDATE@10.0.0.109:1521/HISTESTFILE=D:\AUTO_UPDATE20160218.DMP
expportal/bsoft@bshrp56_bj file=f:\wud\portal20180506.dmplog=f:\wud\portal20180506.txt owner=portal
IGNORE=YTABLES=(TABLEA,TABLEB),可以忽略创建错误,手工创建后再单独导入失败的表。
5. 创建完数据库后修改参数
ALTERPROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;
altersystem set deferred_segment_creation=false;
altersystem set audit_trail=NONE scope=spfile sid='cyey';
altersystem set sec_case_sensitive_logon=false;
ALTERPROFILE DEFAULT LIMIT FAILED_LOGIN_ATTEMPTS UNLIMITED;