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DBA_CONSTRAINTS describes all constraint definitions on all tables in the database. Its columns are the same as those in ALL_CONSTRAINTS. Previous Next JavaScript must be enabled to correctly display this content Database Reference; Static Data Dictionary Views ; Static Data Dictionary Views: DBA_2PC_NEIGHBORS to DBA_HIST_JAVA_POOL_ADVICE ...
oracle 出错 ERROR at line 1: ORA-02290: check constraint (SHOPPINGDBA.SYS_C005488) violated美女抱抱我吧：你好!这个报错，表明当前操作违反了check约束具体约束的内容可以查看select * from dba_constraints
DBA_CONSTRAINTS describes all constraint definitions on all tables in the database. Its columns are the same as those in ALL_CONSTRAINTS. Previous Next JavaScript must be enabled to correctly display this content Database Reference; Static Data Dictionary Views ; Static Data Dictionary Views: DBA_2PC_NEIGHBORS to DBA_HIST_JAVA_POOL_ADVICE ...
Tom, I've two tables say T1 and T2. Both of them have views V1 and V2 on them. The view V1 is created with 'WITH READ ONLY' (hence a record exist in DBA_CONSTRAINTS with CONSTRAINT_TYPE='O') where are the view V2 has the same defination as V1 but is without 'WITH READ ONLY'.
If there is a valid reason for the constraint then the code that is updating the table is incorrect rather than the constraint itself. - Ben. Commented Jun 10, 2012 at 17:33. I can find it in all_constraints, I am using the correct schema. Regarding your last point >>If there is a valid reason for the constraint then the code that is updating ...
Primary & foreign keys and the tables & columns they reference. Referenced primary keys Simple query that lists all primary keys and the tables & columns they use. Adjust the where clause to your needs. Hierarchy of primary & foreign keys A more complex query: This will travel the hierarchy of foreign keys for a given table and column and return columns from child and grandchild, and all ...
The value is either USER NAME or GENERATED NAME and indicates whether the name of the constraints was provided when the constraint was created: If the value is GENERATED NAME, the constraint name was chosen by Oracle and starts with SYS_. BAD: BAD or null: RELY: LAST_CHANGE: INDEX_OWNER, INDEX_NAME: Identification of used index. INVALID: VIEW ...
I've posted previously about how a foreign key constraint can change how a SELECT query behaves. Logically that just makes sense. But other types of constraints don't affect execution plans do they? Yes. Let's take this constraint as an example: ALTER TABLE Sales.SalesOrderDetail WITH CHECK ADD Â CONSTRAINT CK_SalesOrderDetail_UnitPrice CHECK Â ((UnitPrice>=(0.00))) That will ensure ...
Constraint Types. Now, let's review the different constraint types we can find in most database engines. We are going to start from the most basic then move on to the more complex. DEFAULT. This type of constraint allows us to define a value to be used for a given column when no data is provided at insert time.
2. Entity Integrity constraint : On inserting NULL values to any part of the primary key of a new tuple in the relation can cause violation of the Entity integrity constraint. Example: Insert (NULL, 'Bikash, 'M', 'Jaipur', '123456') into EMP . The above insertion violates the entity integrity constraint since there is NULL for the