T- SQL Equivalents for Microsoft Access VBA Functions — Database. Journal. com. If you need to migrate your Access application to SQL. Server, don't count on The SQL Server Upsize Wizard in Microsoft Access to automatically. VBA functions. If you want to push the complex query processing. Access queries to the back end, you'll have to rewrite them in. T- SQL. I was introduced to SQL Server version 7. I was asked to convert all of the queries in a shrink- wrapped, production ready. Access application that managed room reservations. I had never written a line. T- SQL, never built a stored procedure or even a view for that matter but I. Convert Microsoft Access To Postgresql ReplicationFree PDF Printer and other freeware - Create PDF documents from Windows applications - Convert Microsoft Access databases to MySQL. Supports Citrix MetaFrame, Windows. I mean, how difficult can it be? It's all SQL language, isn't. Actually no, it isn't. Microsoft Access allows users to. VBA functions in the SQL query language. From things as simple as Date(). Convert Microsoft Access To Postgresql DocumentationMicrosoft Access - 0 Microsoft Access interview questions and 1 answers by expert members with experience in Microsoft Access subject. Discuss each question in detail. · This month's article focuses on a few of the more common conversion scenarios you will face when converting Access queries to SQL Server. IIf() function. Access also allows you to. VBA functions right from the query, like custom functions to. Doesn't the SQL Server Upsize Wizard in Microsoft Access. No, sadly, it doesn't even try. If you. want to push the complex query processing done by your Access queries to the. T- SQL. If that's a task you have in. High Level Overview. Without beating the details to death, here is a quick. T- SQL commands that map to the Access functions we are. If unsure what the options are for the T- SQL functions. F1 to bring up Books Online help. Category. Access. Date. Date()GETDATE()Date. Date. Add()DATEADDDate. Date. Diff()DATEDIFFDate. Day()DAYDate. Month()MONTHDate. Year()YEARDate. Is. Date()ISDATENumeric. Abs()ABSNumeric. Is. Numeric()ISNUMERICNumeric. Round()ROUNDString. Asc()ASCIIString. Chr()CHARString. In. Str()CHARINDEXString. In. Str()PATINDEXString. LCase()LOWERString. Left()LEFTString. Len()LENString. Mid()SUBSTRINGString. Nz()ISNULLString. Replace()REPLACEString. Right()RIGHTString. Space()SPACEString. String()REPLICATEString. Trim()LTRIMString. Trim()RTRIMString. Ucase()UPPERBonus. Iif()CASEWatch Out for These Gotcha's. There are a couple of tricks to watch out for. First, the. function signatures sometimes match the VBA ones exactly, but don't expect that. If you don't get the results you expect, review the. Second, T- SQL is much less forgiving than Access. In T- SQL. one uses the plus operator (+) to do both concatenation and addition. Numbers. are automatically added together. Text strings are automatically concatenated. But if you try to "plus" the string "the order number is ". Numbers, currency and. SELECT 'the order number is ' + CONVERT(VARCHAR(8), tbl. Order. Order. ID)Lastly, managing dates in T- SQL is going to seem like a. Hell after having worked with dates in Access and VBA. Sure. there are some SQL developers out there with thousands of lines of library code. You haven't, so it's going to hurt. Never. fear, though, because we have the almighty Google. Need a script to find the. Google it. Gotta count "work days"? Google. it. Whatever result you end up with will most likely be clumsy, but it's. The Devil is in the Details. What follows below is the contents of a module I constructed. Microsoft Access where I built, ran and tested each of the functions listed. Beneath each Debug. Print call is an example using the T- SQL equivalent. Access function being executed. If you're ambitious, copy and paste the following into an. Access module and give it a run. If you're really, really. SQL Server Management Studio and try. SELECT statements. You'll see that they do indeed produce the. Access counterparts. Debug. Print "Today's date is " & Date. Debug. Print "The time now is " & Now(). SELECT GETDATE() AS The. Result. ' 2. 01. 0- 0. Debug. Print "Is the text 'Feb 1. Is. Date("Feb 1. 1 2. Debug. Print "Is the text '9. Is. Date("9. 87. 1. SELECT ISDATE('Feb 1. ISDATE('9. 87. 1. Debug. Print "Now plus one day is " & Date. Add("d", 1, Now()). SELECT DATEADD(DAY, 1, GETDATE()) AS The. Result ' 2. 01. 0- 0. Debug. Print "Minutes diff is " & Date. Diff("n", #2/8/2. PM#, Now()). ' SELECT DATEDIFF(N, '2. GETDATE()). 'Day(), Month() & Year(). Debug. Print "D- " & Day(Date) & " M- " & Month(Date) & " Y- " & Year(Date). SELECT DAY(GETDATE()), MONTH(GETDATE()), YEAR(GETDATE()). T- SQL WARNING ///////////////////////////. Be careful about concatonation in SQL. The plus operator (+) is used. So. ' this next SQL will evalulate to the sum of today's date parts, which. SELECT DAY(GETDATE()) + MONTH(GETDATE()) + YEAR(GETDATE()). T- SQL WARNING ///////////////////////////. Debug. Print "The absolute value of - 1. Abs(- 1. 23). ' SELECT ABS(- 1. Debug. Print "Is the text 'Monday' a number? Is. Numeric("Monday"). Debug. Print "Is the text '9. Is. Numeric("9. 87. SELECT ISNUMERIC('Monday'), ISNUMERIC('9. Debug. Print "One can round 3. Round(3. 45. 3. 45. SELECT ROUND(3. 45. Debug. Print "The letter 'G' is ASC " & Asc("G"). Debug. Print "ASCII 7. Char value of '" & Chr(7. SELECT ASCII('G') AS The. Number, CHAR(ASCII('G')) AS The. String. ' The. Number = 7. The. String = 'G'. Debug. Print "Where does 'pqr' start in 'abcpqrxyz'? In. Str(1, "abcpqrxyz", "pqr"). SELECT CHARINDEX('pqr', 'abcpqrxyz', 0). SELECT PATINDEX('%pqr%', 'abcpqrxyz'). Debug. Print "The middle 3 chars of 'abcpqrxyz' are: " & Mid("abcpqrxyz", 4, 3). SELECT SUBSTRING('abcpqrxyz', 4, 3). LCase(), Ucase(). Debug. Print LCase("Lamont Cranston") & " - or - " & UCase("Lamont Cranston"). SELECT LOWER('Lamont Cranston'), UPPER('Lamont Cranston'). Left(), Right(). Debug. Print Left("abcpqrxyz", 4) & " - or - "; Right("abcpqrxyz", 4). SELECT LEFT('abcpqrxyz', 4), RIGHT('abcpqrxyz', 4). Debug. Print "Better than T- SQL .. Trim(" both trim "). SELECT LTRIM(RTRIM(' both trim ')) AS The. String. 'Space(), String(). Debug. Print String(5, "W") & Space(3) & String(5, "O") & Space(3) & String(5, "W"). SELECT REPLICATE('W',5) + SPACE(3) + REPLICATE('O',5) + SPACE(3) +REPLICATE('W',5). Debug. Print "How big is 'supercalifragalistic'? Len("supercalifragalistic"). SELECT LEN('supercalifragalistic') AS The. Value. Debug. Print "Replace Null with something: " & Nz(Null, " .. SELECT ISNULL(NULL, 'this is something' AS Null. Result. Debug. Print "Replace something with something: " & Replace("abcpqrxyz", "pqr", "9. SELECT REPLACE('abcpqrxyz','pqr','9. AS Replace. Result. Debug. Print "The IIf() function is harder: " & IIf(1 = 0, "Got Math?", "Correct"). SELECT CASE WHEN 1=0 THEN 'Got Math?' ELSE 'Correct' END AS IIFResult. Worth the Effort. The chart above, with the T- SQL versions of your favorite. VBA functions, will come in handy if you have to migrate your Access. SQL Server, but some may wonder if it’s worth the effort. The. answer is an unqualified yes. If your data is in SQL Server then pushing the. Perhaps that last bit of advice is a little unsolicited. This article didn’t bother to ask “why” you want to convert your VBA functions. T- SQL, but it’s a good question and probably worthy of its own article. The first Access- to- SQL conversion I did over a decade ago. So. the point is moot where T- SQL features simply can’t be employed, but everywhere. See All Articles by Columnist. Danny J. Lesandrini.
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