如何在Datetime中使用NOT IN或Not Exist自定义？

Question

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

Ex. * First Table "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.:)

Answer 1

Unless I misunderstood your question, you need something like this:

SELECT tf.EmpNo,tf.ChkDate
FROM filesTA tf 
LEFT JOIN SalaryDay2 sd2 ON (sd2.EmpNo = tf.EmpNo AND sd2.ChkDate = tf.ChkDate)
WHERE sd2.EmpNo IS NULL  --you may want to add other condition as well

(records from filesTA for which there is no corresponding records in SalaryDay2)

Answer 2

BETWEEN is an inclusive thing, basically boiling down to

x BETWEEN a AND b

being the same as

(x >= a) AND (x <= b)

if I'm reading your sample correctly, you want a non-inclusive version, which you'll have to write out the hard way:

yourdate > '2012-10-01' AND yourdate <= '2012-10-05'
         ^-- note: <, not <=         

Answer 3

Use EXCEPT clause

SELECT EmpNo, ChkDate
FROM filesTA
EXCEPT
SELECT sEmpNo, sDate
FROM SalaryDay2
WHERE sDate BETWEEN '20121001' and '20121005' 

Demo on SQLFiddle

Answer 4

You can use NOT EXISTS for this purpose. It should eliminate lines that doesn't exist in your second table, based on your criteria for joining.

DECLARE @FirstDate DATE = '2012-10-01'
DECLARE @SecondDate DATE = '2012-10-05'
SELECT  *
FROM    FilesTA
WHERE   NOT EXISTS ( SELECT 1
                     FROM   SalaryDay2
                     WHERE  SalaryDay2.sDate = FilesTA.ChkDate 
                     -- If you want to check per EmpNo as well uncomment this line:
                     -- AND SalaryDay2.sEmpNo = FilesTA.EmpNo
)
        AND FilesTA.ChkDate BETWEEN @FirstDate
                            AND     @SecondDate