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I am having a hard time figuring out how to find the previous day's .bak file name. SQL generates my .bak files in the following format: 444_db_20081004. I have looked through the Macro section of the help file, but i cannot find a way to get yesterdays date. The gist of what I am trying to do is as follows:

$prevBAK = "444_db_" & @year & @mon & @mday - 1 & @hour & "00"

If I can get yesterdays date. The rest is gravy :-)

Thanks for any help!!

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Hi SolemnPaladin,

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Seems your problem is within the Integer structure. Seeing as the Day format is "04" when converted into an integer (which is what happens when you subtract from it) it takes off the first 0 as it is not a proper integer format. So do somthing like:

If @mDay < 10 Then
    $Day=  "0" & @MDAY -1
$prevBAK = "444_db_" & @year & @mon & $Day & @hour & "00"

Hope this helps

Edited by Marlo
Click here for the best AutoIt help possible.Currently Working on: Autoit RAT
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I am having a hard time figuring out how to find the previous day's .bak file name. SQL generates my .bak files in the following format: 444_db_20081004. I have looked through the Macro section of the help file, but i cannot find a way to get yesterdays date. The gist of what I am trying to do is as follows:

$prevBAK = "444_db_" & @year & @mon & @mday - 1 & @hour & "00"

If I can get yesterdays date. The rest is gravy :-)

Thanks for any help!!

I wrote this a while back. May help in the future:

#Include <Date.au3>

MsgBox(0, "",   _DateSubtract(-1))

Func _DateSubtract($iSubtract)

    Local $Days[7] = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" ]
    Local $Month[12] = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]

    $Split = StringSplit(_DateAdd('d', $iSubtract, _NowCalcDate()), "/")
    $CurentDate = $Days[_DateToDayOfWeekISO($Split[1], $Split[2], $Split[3])] & ", " & $Month[$Split[2] - 1] & " " & $Split[3] & ", " & $Split[1]

    Return $CurentDate
EndFuncoÝ÷ Ø l¢Ø^~éܶ*'2èqêÞ³¬µ©dxn­¬)¶¬jëh×6#Include <Date.au3>

$Split = StringSplit(_DateAdd('d', -1, _NowCalcDate()), "/")
$PrevBKDate = "444_db_" & $Split[1] & $Split[2] & $Split[3] 

MsgBox(0, "", $PrevBKDate)
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Thanks for the warm welcome! I appreciate all of the responses! I perused through the Date functions like you guys suggest and it sparked an idea. I used the Julian Values instead to find the backup file that was created yesterday. Below is the search portion of my script

; get the julian date of today and yesterday

$jtoday = _DateToDayValue(@year,@mon,@mday)

$jyesterday = $jtoday - 1

; Finds the first SQL Backup file (.bak) in the current directory and stores it in $search.

$search = FileFindFirstFile("D:\MSSQL\Backup\444\*.BAK")

; Check if the search was successful

If $search = -1 Then

MsgBox(0, "Transfer 444", "Error: No SQL Backupfiles (.BAK) Found!")




$file = FileFindNextFile($search)

If @error Then ExitLoop

; get the backup file's date and convert it to julian

$cFileCreatedDate = FileGetTime($file, 1)

$cjFileCreatedDate = _DateToDayValue($cFileCreatedDate[0],$cFileCreatedDate[1],$cFileCreatedDate[2])

until $cjFileCreatedDate = $jyesterday


The script works great now! Again thanks for the help! :-)

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