--检查损坏索引 SELECT status, COUNT(*) FROM dba_indexes GROUP BY status UNION SELECT status, COUNT(*) FROM dba_ind_partitions GROUP BY status UNION SELECT status, COUNT(*) FROM dba_ind_subpartitions GROUP BY status --重建索引 alter index pk_kc03 rebui
同步数据的时候 有索引会比较慢 可以暂时禁用索引 --禁用索引 ALTER INDEX PK_T_AUTH_USERROLE_ID UNUSABLE; --恢复索引ALTER INDEX UK_T_AUTH_USER_EMP_CODE REBUILD; --查看索引状态select status from user_indexes where index_name='UK_T_AUTH_USER_EMP_CODE'; 11.查询oracle的连接数2select count(*) from v
ORACLE: 1.查主键名称: select * from user_constraints where table_name = 'AAA' and constraint_type ='P'; 查主键对应的列: select * from user_cons_columns where table_name = 'AAA' and constraint_name = 'PK_AAA'; (PK_AAA 是主键名) 2.查索引名称: select * from user_indexes whe
本文来源:huang_xw 的<Oracle数据库的状态查询> 1 状态查询 启动状态 SQL语句 结果 nomount select status from v$instance; STARTED select open_mode from v$database; ERROR at line 1: ORA-01507: database not mounted mount select status from v$instance; MOUNTED select open_mode from
Oracle 的索引可分为5种,它们包括唯一索引.组合索引.反向键索引.位图索引和基于函数的索引.1.创建索引的标准语法CREATE INDEX 索引名 ON 表名 (列名)TABLESPACE 表空间名;例如:CREATE INDEX idx_of_imsi ON uim_auth_file(imsi) TABLESPACE users;2.创建唯一索引CREATE unique INDEX 索引名 ON 表名 (列名)TABLESPACE 表空间名;例如:CREATE UNIQUE INDE