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  • oracle 实现ID自增

    CREATE TABLE testTable1
    (
    ID INT NOT NULL,
    NAME VARCHAR2(4000) NOT NULL,
    PRIMARY KEY(ID)
    )
    TABLESPACE MYDB;
     
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE testTable1_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE;
     
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER testTable1_INS_TRG BEFORE INSERT ON testTable1 FOR EACH ROW WHEN(NEW.ID IS NULL)
    BEGIN
    SELECT testTable1_ID_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
    END;
    
    
    
    
    
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE lz_Cbenefititem_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE; 
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER lz_Cbenefititem_pro_INS_TRG BEFORE INSERT ON lz_claimbased_benefititem_pro FOR EACH ROW WHEN(NEW.benefititemno IS NULL)
    BEGIN
    SELECT lz_Cbenefititem_ID_SEQ.NEXTVAL INTO :NEW.benefititemno FROM DUAL;
    END;
    
    
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE lz_Cclassify_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE; 
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER lz_CClassify_pro_INS_TRG BEFORE INSERT ON lz_claimbased_classify_pro FOR EACH ROW WHEN(NEW.benefitsclassifyno IS NULL)
    BEGIN
    SELECT lz_Cclassify_ID_SEQ.NEXTVAL INTO :NEW.benefitsclassifyno FROM DUAL;
    END;
    
    
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE lz_Cdeductible_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE; 
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER lz_CDeductible_pro_INS_TRG BEFORE INSERT ON lz_claimbased_deductible_pro FOR EACH ROW WHEN(NEW.deductibleno IS NULL)
    BEGIN
    SELECT lz_Cdeductible_ID_SEQ.NEXTVAL INTO :NEW.deductibleno FROM DUAL;
    END;
    
    
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE lz_Cmaximum_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE; 
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER lz_Cmaximum_pro_INS_TRG BEFORE INSERT ON lz_claimbased_maximum_pro FOR EACH ROW WHEN(NEW.outofpocketmaximumno IS NULL)
    BEGIN
    SELECT lz_Cmaximum_ID_SEQ.NEXTVAL INTO :NEW.outofpocketmaximumno FROM DUAL;
    END;
    
    
    --创建自增ID,名称为:表名_字段名_SEQ
    CREATE SEQUENCE lz_Cbenefits_ID_SEQ MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 NOCACHE; 
     
    -- 为Insert操作创建触发器,无需在SQL语句里写NEXTVAL,名称为表名_INS_TRG
    CREATE OR REPLACE TRIGGER lz_Cbenefits_pro_INS_TRG BEFORE INSERT ON lz_claimbased_benefits_pro FOR EACH ROW WHEN(NEW.benefitsno IS NULL)
    BEGIN
    SELECT lz_Cbenefits_ID_SEQ.NEXTVAL INTO :NEW.benefitsno FROM DUAL;
    END;
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  • 原文地址:https://www.cnblogs.com/Luouy/p/6089652.html
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