如果您需要它来生成更多动态值，请使用WHERE来匹配特定记录
This lock, also called a subexclusive table lock (SX), generally indicates that the transaction holding the lock has updated table rows or issued SELECT ... FOR UPDATE. An SX lock allows other transactions to query, insert, update, delete, or lock rows concurrently in the same table. There...
SQL>SELECTOWNER, TABLE_NAME, OBJECT_TYPE, NUM_ROWS2FROMDBA_TAB_STATISTICS3WHEREOWNER='SCOTT'ANDTABLE_NAME='EMP'; OWNER TABLE_NAME OBJECT_TYPE NUM_ROWS--- --- --- ---SCOTT EMPTABLE14SQL>SELECTCOUNT(*)FROMSCOTT.EMP;COUNT(*)---14 检查DBA_TAB_COL_STATISTICS中表的列的NUM_DISTINCT,LOW_...
selecttable_name,num_rows,blocks,empty_blocksfromuser_tableswheretable_name='table'; 总结: 这是对命令与工具包的一些总结1、对于分区表,建议使用DBMS_STATS,而不是使用Analyze语句。 a)可以并行进行,对多个用户,多个Table b)可以得到整个分区表的数据和单个分区的数据。 c)可以在不同级别上Compute Statistics...
grantupdateanytableto<user>;grantdeleteanytableto<user>;-- Index and view DDL permissionsgrantcreateanyindexto<user>;grantalteranyindexto<user>;grantdropanyindexto<user>;grantcreateanyviewto<user>;grantdropanyviewto<user>;-- Procedure permissionsgrantcreateanyprocedureto<user>;grantexecuteanyprocedure...
Oracle Cloud Infrastructure enables automatic updates on Microsoft Windows Server and uses the default settings for applying Windows patches. You need to update your VCN security list to enable egress traffic for port 80 (http) and port 443 (https) to install patches from Microsoft Windows Update ...
select * from a left join b on a.col1=b.col2; remember the table to the right of left join and add (+) to it's columns. select * from a, b where a.col1=b.col2(+); select * from a right join b on a.col1=b.col2; ...
select*fromcompat_tools.compat_testing; Oracle 兼容视图 Oracle_Views.sql 包含如下几类 Oracle 兼容性视图: 管理视图: ALL_*, DBA_*, USER_* ALL_视图当前与DBA_视图一致,并未做权限检验,后期版本将会考虑权限校验。 默认安装视图时,若内核字典中对象名为纯小写,则查询结果中转换为纯大写,大小写混合则不变...
sqlplusmigration users/password@database service nameselect table_name from user_tables; To resolve an incomplete repository within the Migration Workbench: Create a new tablespace using the default options provided by Oracle Enterprise Manager. Make sure that you have sufficient disk space. ...
Get tables This operation gets tables from a database. Insert row This operation inserts a new row into a table. Update row This operation updates an existing row in a table.Delete rowOperation ID: DeleteItem This operation deletes a row from a table. Parameters 展開資料表 NameKeyRequired...