a.constraint_name, a.constraint_type, a.r_owner, a.r_constraint_name,--被外键引用的约束名 b.table_name --被外键引用的表名 from dba_constraints a, dba_constraints b where a.constraint_type = 'R' and a.r_constraint_name = b.constraint_name and a.r_owner = b.owner and b.table_n...
a.constraint_name, a.constraint_type, a.r_owner, a.r_constraint_name,--被外键引用的约束名 b.table_name --被外键引用的表名 from dba_constraints a, dba_constraints b where a.constraint_type = 'R' and a.r_constraint_name = b.constraint_name and a.r_owner = b.owner and b.table_n...
Oracle数据库rename(重建表)操作 Oracle 重建表(rename)注意事项总结 [日期：2014-07-02] 来源：Linux社区 作者：oradh [字体：大 中 小] 一、概述 前一段时间，有一个DBA朋友在完成重建表(rename)工作后，第二天早上业务无法正常运行，出现数据无法插入的限制和错误，后来分析才发现，错误的原因是使用...
OceanBase(root@test)>create table t1(a int, b int as (a + 1), c int, d int, constraint d_check check(d > 0)) partition by hash(c + 1) partitions 2; Query OK, 0 rows affected (0.057 sec) OceanBase(root@test)>alter table t1 rename column a to e; ERROR 3108 (HY000): Colu...
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Oracle 11.2.0.2新特性——用户重命名(Rename User) 11.2.0.2里新增了一个很有意思的新特性——用户重命名(Rename User),以前俺们都是Rename datafile呀,tablespace呀,Index呀,抑或是constraint之类,没想到User也可以重命名的。据说这个DDL操作的需求是来源于SAP: SAP identifies a specific SAP system by the name...
As mentioned earlier, Oracle transferred all indexes, constraints, and grants from the promotions table to the campaigns table. The following statement shows the constraints of the newcampaignstable transferred from thepromotionstable: SELECTconstraint_name, search_conditionFROMall_constraintsWHEREtable_name...
CONSTRAINTALTER TABLE table_name RENAME CONSTRAINT old_name TO new_name;VIEWRENAME old_table TO new_table;datafilealter database rename file ‘old’ to ‘new’;logfilealter database rename file ‘old’ to ‘new’;TABLESPACEALTER TABLESPACE old RENAME TO new; [10g new]OUTLINEALTER ...
Restriction: If a view, trigger, check constraint, foreign key constraint, or generationClause of a generated column references the column, an attempt to rename it will generate an error. Restriction: The RENAME COLUMN statement is not allowed if there are any open cursors that reference the col...
Foreign key constraint names that point to the renamed table are automatically updated unless there is a conflict, in which case the statement fails with an error. A conflict occurs if the renamed constraint name already exists. In such cases, you must drop and re-create the foreign keys for...