ORACLE sql查询用户/表/数据/外键/主键/索引
查询用户数量
-- 查询用户数量 SELECT COUNT(*) AS user_count FROM DBA_USERS;
SELECT COUNT(*) AS user_count FROM USER_TABLES;
查询表数量
-- 查询表数量 SELECT OWNER, COUNT(*) AS table_count FROM DBA_TABLES WHERE OWNER IN ('RBCC_ICO_ADMIN', 'DPDB_CONFIDENTIAL', 'DPDB_INTERNAL') GROUP BY OWNER;
检查数据记录数量
-- 检查数据记录数量 SELECT OWNER, SUM(NUM_ROWS) AS NUM_ROWS FROM DBA_TABLES WHERE OWNER IN ('xxx', 'xxx', 'xxx') GROUP BY OWNER;
检查约束数量: 主键/外键
-- 检查约束数量: 主键/外键 SELECT OWNER, COUNT(1) COUTS FROM all_constraints WHERE OWNER IN ('xxx', 'xxx', 'xxx') AND constraint_type IN ('P', 'R') GROUP BY OWNER;
检查约束数量: 索引
-- 检查约束数量: 索引 SELECT OWNER, COUNT(1) COUTS FROM all_indexes WHERE OWNER IN ('xxx', 'xxx', 'xxx') GROUP BY OWNER;
分类:
DB
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