1.获得当前用户有权限的表的信息(ALL_TABLES ) (只要对某个表有任何权限,即可在此视图中看到表的相关信息) 表中各字段说明如下: 参考:https://www.iteye.com/blog/appleses-2280054
all_indexes bWHEREa.index_name = b.index_nameANDa.table_name =upper('zb_bal');---Oracle 查询库中所有表名、字段名、字段名说明,查询表的数据条数、表名、中文表名---查询所有表名:selectt.table_namefromuser_tables t;---查询所有字段名:selectt.column_namefromuser_col_comments t;---查询...
ALL_TABLES describes the relational tables accessible to the current user. To gather statistics for this view, use the ANALYZE SQL statement.Related Views DBA_TABLES describes all relational tables in the database.USER_TABLES describes the relational tables owned by the current user. Thi...
SQL1:select decode(t.num_rows, 0, t.table_name, null) 无数据的表,decode(t.num_rows, 0, null, t.table_name) 有数据的表 from user_tables t where t.table_name in (SELECT t1.table_name FROM All_All_Tables t1);SQL2 select decode(t.num_rows, 0, t.table_name, null)...
If you have worked with MySQL, you may be familiar with theSHOW TABLEScommand that lists all tables in a database: SHOWTABLES;Code language:SQL (Structured Query Language)(sql) Unfortunately, Oracledoes notdirectly support theSHOW TABLEScommand. However, you can list all tables in a database...
oracle常用经典SQL查询本篇文章是本人在工作中真理整理的一些常用的查询SQL语句如果喜欢记得收藏点赞分享关注哦 1、查看表空间的名称及大小select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_sizefrom dba_tablespaces t, dba_data_files dwhere t.tablespace_name = d.tablespace_namegroup by t....
1.3.1 提升SQL查询性能 1.3.2 提升表可管理性 1.3.3 提升数据可用性 二、基础分区策略 2.1 范围分区(Range Partition) 2.2 哈希分区(Hash Partition) 2.3 列表分区(List partition) 三、扩展分区策略 3.1 复合分区(Composite Partition) 3.2 引用分区(Reference Partition) ...
26、mpression indicates that all tables in the tablespace will be created with table compression enabled unless otherwise specified.RETENTIONVARCHAR2(11)Undo tablespace retention: GUARANTEE - Tablespace is an undo tablespace with RETENTION specified as GUARANTEEA RETENTION value of GUARANTEE indicates t 27...
Listing All Tablespace Quotas Use the DBA_TS_QUOTAS view to list all tablespace quotas specifically assigned to each user. For example: SELECT * FROM DBA_TS_QUOTAS; TABLESPACE USERNAME BYTES MAX_BYTES BLOCKS MAX_BLOCKS --- --- --- --- --- --- USERS JFEE 0 512000 0 250 USERS DCRAN...
SQL> select * from all_directories; 4、查看数据库现有模式、是否归档 SQl>select name,log_mode from v$database; 也可以用下面的语句 archive log list;(该方法需要as sysdba) 查看数据库的创建日期和归档方式 SQL> Select Created, Log_Mode, Log_Mode From V$Database; ...