How to use NOT IN or Not Exist custom in Datetime?

  • i use 2 table, i want first table not data in table two of show on to database.

    Ex.

    "filesTA"

    EmpNo | ChkDate

    00001 | 2012-10-01 00:00:00.000

    00001 | 2012-10-02 00:00:00.000

    00001 | 2012-10-03 00:00:00.000

    00001 | 2012-10-04 00:00:00.000

    00001 | 2012-10-05 00:00:00.000

    "SalaryDay2"

    sEmpNo | sDate

    00001 | 2012-10-01 00:00:00.000

    00001 | 2012-10-02 00:00:00.000

    When i select datetime between 2012-10-01 and 2012-10-05

    i need output:

    sEmpNo | sDate

    00001 | 2012-10-03 00:00:00.000

    00001 | 2012-10-04 00:00:00.000

    00001 | 2012-10-05 00:00:00.000

    this code:

    SELECT tf.EmpNo,tf.ChkDate

    FROM filesTA tf

    WHERE tf.ChkDate NOT IN(

    SELECT sd2.sDate

    FROM SalaryDay2 sd2

    WHERE Convert(nvarchar(10),sd2.sDate,126) Between '2012-10-01' and '2012-10-05'

    )

    please help me. thanks you for you time. 🙂

  • Hope that following should help you:

    SELECT tf.EmpNo, tf.ChkDate

    FROM filesTA tf

    WHERE tf.ChkDate BETWEEN '20121001' AND '20121005'

    AND NOT EXISTS (SELECT 1 FROM SalaryDay2 sd2

    WHERE sd2.sEmpNo = tf.EmpNo

    AND sd2.sDate = tf.ChkDate)

    Please note:

    1. Never convert datetime to anything else (varchar or int) for datetime comparison.

    If your SalaryDay2.sDate is varchar, convert it to datetime instead (or it will be properly implicitly converted if it's in ISO)

    2. Note the format I've used - it's one of possible ISO variations: Year then Month then Day. You can use '1 Oct 2012', it will also work perfectly as month is explicitly known.

    3. Used BETWEEN will only work properly if your datetime values do not contain time part. Otherwise, you should use greater-than-or-equal-to and less-than in WHERE clause for datetime filtering:

    WHERE tf.ChkDate >= '20121001' AND tf.ChkDate < '20121006' --note the "to" boundary...

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  • Eugene Elutin (12/10/2012)


    Hope that following should help you:

    SELECT tf.EmpNo, tf.ChkDate

    FROM filesTA tf

    WHERE tf.ChkDate BETWEEN '20121001' AND '20121005'

    AND NOT EXISTS (SELECT 1 FROM SalaryDay2 sd2

    WHERE sd2.sEmpNo = tf.EmpNo

    AND sd2.sDate = tf.ChkDate)

    Please note:

    1. Never convert datetime to anything else (varchar or int) for datetime comparison.

    If your SalaryDay2.sDate is varchar, convert it to datetime instead (or it will be properly implicitly converted if it's in ISO)

    2. Note the format I've used - it's one of possible ISO variations: Year then Month then Day. You can use '1 Oct 2012', it will also work perfectly as month is explicitly known.

    3. Used BETWEEN will only work properly if your datetime values do not contain time part. Otherwise, you should use greater-than-or-equal-to and less-than in WHERE clause for datetime filtering:

    WHERE tf.ChkDate >= '20121001' AND tf.ChkDate < '20121006' --note the "to" boundary...

    Oh, thanks so much! i'm learnings this news. 😛

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