UDF


Articles

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DateTitleAuthorType
31 Mar 2003 Starting transactions in Stored Procedures and User Defined Functions
A brief explanation why you cannot start transactions in stored procedures and user defined functions.
Ben Matterson FAQ
28 Aug 2001 Managing a birthday calendar with InterBase
User-defined functions are the key to remembering everyone's natal anniversary. By Marco Hemmes.
Marco Hemmes Contributed Article
26 Sep 2000 Writing Clean and Safe UDFs in Delphi
This article assumes the reader understands Delphi well enough to know how to create a DLL--We will demonstrate how to create UDFs, not DLLs.
Borland Staff TI
24 Jul 2000 Passing and Returning Dates to a Delphi-created UDF
A Protection Exception or erroneous results may occur if special precautions are not taken
Borland Staff FAQ
24 Jul 2000 How to use the udflib.c supplied in the IB V4.x examples directory.
How to compile the udf example shipped with the 4.x kits.
Borland Staff FAQ
24 Jul 2000 Rounding numerical values in a stored procedure
A UDF is the best way to round a numeric value to an integer
Borland Staff FAQ
24 Jul 2000 SCH_validate errors appear in interbase.log file
SCH_validate errors are internal server errors that are related to InterBase's internal scheduler.
Borland Staff FAQ
24 Jul 2000 Into which directory do I put UDF DLLs (Windows platforms)
InterBase uses the Win32 API function: LoadLibrary to load a UDF.
Borland Staff FAQ
24 Jul 2000 Compiling UDFs on Unix
Example for compiling a UDF under Solaris
Borland Staff FAQ
24 Jul 2000 Information on how to use the dow() UDF
Getting the error .."error 171: function dow() could not be matched..
Borland Staff FAQ
24 Jul 2000 Diagnostic Steps to Try When InterBase Will Not Recognize a UDF
5 different potental reasons for this error
Borland Staff FAQ
24 Jul 2000 Is it possible to access data from the database within a UDF?
Although it is possible to access data from a UDF, it is not recommended.
Borland Staff FAQ
24 Jul 2000 Can UDF's Add Results From More Than One Record?
UDF cannot remember the answer from a previous record
Borland Staff FAQ
24 Jul 2000 Where to find information on building a shared library on SCO 5
A UDF on any platform is just a shared library.
Borland Staff FAQ
24 Jul 2000 Returning thread-safe values from an UDF
There are three ways to manage thread-local storage when returning values from a UDF.
Borland Staff FAQ
24 Jul 2000 Creating UDFs in Delphi
This paper will provide step by step instructions for creating a UDF in Delphi.
Borland Staff FAQ
24 Jul 2000 Defining maximum size of a string argument passed to a UDF
You must account for the null character at the end of the string.
Borland Staff FAQ
24 Jul 2000 Declaring InterBase UDF's in the Database Desktop
One external function may be declared at a time in the SQL editor
Borland Staff FAQ
24 Jul 2000 Trying to group by a UDF return value
Grouping is only allowed field values stored in a table
Borland Staff FAQ
24 Jul 2000 BLR errors when running UDF's from ib_udf.dll
IB_UDF.DLL relies on IB_UTIL.DLL
Borland Staff FAQ

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