problem of time mod

CREATE TABLE EMP
    (
        EMPNO        INT            NOT NULL    ,
        ENAME        VARCHAR(10)                ,
        JOB            VARCHAR(9)                ,
        MGR            INT                        ,
        SAL            NUMERIC(7,2)                ,
        DEPTNO        INT,
        mod_time date
    );
    
CREATE TABLE DEPT
        (
        DEPTNO    INT,
        DNAME    VARCHAR(14),
        LOC        VARCHAR(13) ,
        mod_time    date
        )
   
   
      INSERT INTO emp VALUES
            (7369, 'SMITH', 'CLERK', 7902, 800, 20,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7499, 'ALLEN', 'SALESMAN', 7698, 1600, 30,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7521, 'WARD', 'SALESMAN', 7698, 1250, 30,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7566, 'JONES', 'MANAGER', 7839, 2975, 20,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7654, 'MARTIN', 'SALESMAN', 7698, 1250, 30,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7698, 'BLAKE', 'MANAGER', 7839, 2850, 30,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7782, 'CLARK', 'MANAGER', 7839, 2450, 10,to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7788, 'SCOTT', 'ANALYST', 7566, 3000, 20,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7839, 'KING', 'PRESIDENT', NULL, 5000, 10,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7844, 'TURNER', 'SALESMAN', 7698, 1500, 30,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7876, 'ADAMS', 'CLERK', 7788, 1100, 20,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7900, 'JAMES', 'CLERK', 7698, 950, 30,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7902, 'FORD', 'ANALYST', 7566, 3000, 60,to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO EMP VALUES
            (7934, 'MILLER', 'CLERK', 7782, 1300, 10,to_DATE('01-SEP-2012','DD-MON-YYYY'));
            
            SELECT * FROM EMP
            
        INSERT INTO DEPT 
            VALUES (10, 'ACCOUNTING', 'NEW YORK',to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO DEPT 
            VALUES (20, 'RESEARCH', 'DALLAS',to_DATE('31-JUL-2012','DD-MON-YYYY'));
        INSERT INTO DEPT 
            VALUES (30, 'SALES', 'CHICAGO',to_DATE('01-SEP-2012','DD-MON-YYYY'));
        INSERT INTO DEPT 
            VALUES (40, 'OPERATIONS', 'BOSTON',to_DATE('01-SEP-2012','DD-MON-YYYY'));
            
            SELECT * FROM DEPT
            
        
        CREATE EMP_TARGET as
        select emp.empno,emp.ename, emp.deptNO,dept.dname,EMP.mod_time,dept.mod_time from   emp,dept      
        where emp.deptno=dept.deptno
        and (emp.mod_time<=to_date('31-JUL-2012','DD-MON-YYYY')
        or emp.mod_time<=to_date('31-jul-2012','DD-MON-YYYY'))
How can I get the values where mod_time < = to_date('31-JUL-2012','DD-MON-YYYY') of these two table emp and Dept.
Load in emp_target. Currently my request to emp_target is back dept.mod_time values such as 1-sep-2012

I'm looking only < = to_date('31-JUL-2012','DD-MON-YYYY') of two tables
The following query should be > to_date('31-JUL-2012','DD-MON-YYYY')

How can I get two queries with different loads

Hello

Daniel wrote:

CREATE TABLE EMP
(
EMPNO        INT            NOT NULL    ,
ENAME        VARCHAR(10)                , ...

INSERT INTO emp VALUES
(7369, 'SMITH', 'CLERK', 7902, 800, 20,to_DATE('31-JUL-2012','DD-MON-YYYY'));

Thanks for the display of the data of the sample; It is very useful.
Be sure to post the results desired from these data. For example: «because emp_target has no rows, I want to write an INSERT statement so that it includes...» Later, I want another statement INSERT (or FUSION) so that emp_target contains... ».

How can I get the values where mod_time<=to_date('31-JUL-2012','DD-MON-YYYY') from="" both="" the="" table="" emp="" and="">
Load in emp_target. Currently my request to emp_target is back dept.mod_time values such as 1-sep-2012

You're not restrict Dept. mod_time somehow; only the mod_time EMP.

and (emp.mod_time<=to_date('31-JUL-2012','DD-MON-YYYY')
or emp.mod_time<=to_date('31-jul-2012','DD-MON-YYYY'))

You probably meant to make one of these reference lines Dept. mod_time and use AND place where.

Tags: Database

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