status- status of the constraint (ENABLED/DISABLED) Rows One rowrepresents one check constraint and its column in a database Scope of rows:(A) all check constraints with columns on a table accessible to the cur
Oracle中没有Boolean类型,PL/SQL有Boolean类型.为了替代一个boolean列使用check约束 CREATE TABLE temp(enabled NUMBER(1) NOT NULL); ALTER TABLE temp ADD CONSTRAINT ck_temp_enabled CHECK (enabled IN (0, 1)); 也可以使用varchar2类型 CREATE TABLE temp(enabled VARCHAR2(1) NOT NULL); ALTER TABLE temp...
oracle保存报错check constraint (NVPOLICY.RULE_18) violated 这是在往oralce数据库插入数据时报的错误,经查询是违反了检查约束。 查询此表的约束: select * from user_constraints where table_name='表名' 1. 这是其中一条数据,也是我违反的约束的数据。列constraint_name值为NVPOLICY.RULE_18(表名.此列名),...
Hello Y'all, I received "ORA-02290: check constraint (PRODUCTION.PROJ_PH_PHASE_NUMBER_CK) violated" after running the following merge statement: {code } merge into project_phase target using (select distinct project_id, phase_cd from staging_iris where project_id...
query to find unique constraints on a table in oracle SQL> CREATE TABLE DEPT_MASTER ( dept_nr NUMBER UNIQUE, dept_name varchar2(100) NOT NULL, dept_status NUMBER(1,0) NOT NULL, created_at date ); Table created. SQL> select CONSTRAINT_NAME,INDEX_NAME,CONSTRAINT_TYPE from user_constraints...
一下是Ocp考试指导中,对于oracle约束的描述: The constraint types supported by the Oracle database are as follows: UNIQUE NOT NULL PRIMARY KEY FOREIGN KEY CHECK Constraints have names. It is good practice to specify the names with a standard naming convention, but if they are not explicitly named...
在Oracle数据库中,ENUM列是指一种特殊的列类型,它可以存储预定义的枚举值。然而,Oracle数据库并没有直接支持ENUM列类型。相反,我们可以使用Liquibase工具中的'addCheckConstraint'来模拟实现ENUM列的功能。 'addCheckConstraint'是Liquibase中的一个命令,用于向数据库表中添加检查约束。通过使用'addCheckCon...
CONSTRAINT constraint_name CHECK (column_name condition) [DISABLE] ); 1. 2. 3. 4. 5. 6. 7. 当中,DISABLE关键之是可选项。假设使用了DISABLEkeyword,当CHECK约束被创建后,CHECK约束的限制条件不会生效。 3.2 演示样例1:数值范围验证 create table tb_supplier ...
所以我使用这个：CHECK约束会检查输入到记录中的值是否满足一个条件，如果不满足这个条件则对数据库做的...
参考 Oracle 的文档:Application Developer's Guide - Fundamentals 6 Maintaining Data Integrity in Application Development Restrictions on CHECK Constraints A CHECK integrity constraint requires that a condition be true or unknown for every row of the table.If a statement causes the condition ...