
Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
Question: I am a new commer to VB and have been wondering if it is possible to have cascading pull down menus like the ones I see on the Win95’s
Question: I am trying to setup a toolbar using the MS windows common controls. How do you initialize the image list? The toolbar works but I cant get a image
Question: I have just started working with an application developed in VB that my co-workers say can only be run in the Windows environment through OS/2. Supposedly the program uses
Question: I’m looking for a syntax that can be used to update several columns in an SQLtable. Although I’ve found a number of topics related to ‘update’, they allseem to
Question: Will you please help me in locating a definition of the term “normalizeddatabase”? Answer: Normalization of relational databases is the process of ensuring that thedatabase does not contain redundant
Question: What is the length of a table name or a column name?I know that for some engines it is 18 characters.Is this a SQL limitation or engine limitation ?
Question: I have a form in which the user can select multiple values of “Manufacturer” from a drop-down list. The query should then select from the database all records in
Question: I have a tabular DataWindow with a DDDW. Can I filter the dddw to include only valuesthat have NOT already been selected ? Answer: There is a short, a
Question: Can I use more than one criteria in the QueryWhere(“col1=’val1′”&”col2=’val2′) to refresha bound grid? I would really appreciate an answer or a solution; we are on the border line
Question: I would appreciate an introductory definition/summary of ISQL (Interactive SQL?). Answer: As you’ve guessed, ISQL is an acronym for Interactive SQL. In general,ISQL describes any tool or interface that
Question: How can I make a column that will automatically increment by one each timea new row is inserted into the table? Answer: The solution will depend upon the database
Question: What are the advantages of converting a PC-based Cobol application to a P- based relational database? Answer: The most compelling advantage of converting legacy data into a relationaldatabase management
Question: How can I determine the current filter and/or sortassociated with a DataWindow?For example:s_old_filter = dw_1.WhatsTheCurrentFilter()dw_1.SetFilter(“”)dw_1.Filter()// Do somethingdw_1.SetFilter(s_old_filter)dw_1.Filter() Answer: You can use the Describe function:ls_OldFilter = dw_1.Describe( “datawindow.table.filter” )
Question: Can I use 16-bit DLLs in 32-bit PowerBuilder 5.0? Answer: The short answer is no. If you have access to the source, you could writea thing called a thunk
Question: How can I perform a phonetic search in SQL? I need to search a database ofnames, but exact matches won’t work. Using phonetic matching, I could finda name registered
Question: I’m looking for a way to put a dynamic UserObject in a Tab Control. The PowerBuilder documentation mentions a technique to put it in a window, but nothing for
Question: How can I add a column to a table (not just at the end of the table)? For example: create table test(first_col char(20),second_col char(20)); I want to alter table
Question: I am developing an application that automates government-defined forms, and have defined the forms using DataWindows. For items such as MALE/FEMALE, YES/NO, etc., I have used radio buttons. But
Question: Is it possible to activate an event or function at regular time intervals in a customer user object?I’ve tried to defined a timer event using event id pbm_timer. But
Question: Does an archive or site exist thathas examples or templates for Power Objects? I’ma neophyte, and would like to start with somealready developed applications that I can modify.Specifically, I’m
Question: I need a way of letting the user pick a file name or names from a list. I would prefer this not to be in a dialog box. In
Question: I have a table set up with training records by date. I want to produce a query that will count how many training sessions took place for each quarter
Question: I have a table that contains a concatenated field delimited by colons. The field contains approximately six values I want to house as separate columns on the table. How
Question: Is there a driver for Oracle 7.3.2.3 — the version Oracle recommends for NT 4.0? Answer: Yes, but it is not readily available (as of this writing, 4/14/97). You
Question: How can I print two DataWindows on to one page? Do you have to use a composite DataWindow? Or is there a way to do it with two separate
Question: I have number of forms, including a MainMenu form. On the MainMenu form I have several buttons that I want to click and connect to my other forms. I
Question: Two ways of Indexing a paradox table Answer: Having done a lot of work with Paradox in the past, there are things I’ve learned in Paradox that I’ve needed
Question: A simple property editor Answer: This is an introductory level article about creating a simple property editor that I hope will get you started. I’ll provide enough information about
Question: Using SQL2 built-in functions Answer: A problem that’s rampant with many software tools today, even one as complete and comprehensive as Delphi, is that documentation on many important subjects
Question: I need to add a right-click event to aTDBGrid, but am ata loss as to how to accomplish it. I want to pop up a menu. Do you knowhow?