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Values Resulting to Null

Question: I want to add two numeric fields with values like these: Example 1: One field named Amount contains 565.25 and other field named Ticket contains null. select amount +

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Creating a Crosstab

Question: How can I create a crosstab in SQL Server 7.0? I’m used to Microsoft Access, where I can use columnheading and rowheading. Does this work in SQL? Answer: This

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Insert Trigger on Parent Table

Question: I have two tables and both tables have a one-to-many relationship. I want to add a new single record in the first “transheader” table (key is autonumber) and get

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Extracting Dates

Question: How do I extract dates from SQL where the date type is a datetimestamp? I have the following SQL statement: select * from Patient where PatientDOB = “03/01/58” It

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Unselect All Radio Buttons in Visual InterDev

When the Visual InterDev Scripting Object Model (SOM) creates an option group object (a set of radio buttons), it selects the first radio button when the page loads. You may

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Discover the Time Difference in JavaScript and ASP

If you need to calculate a time difference between your Web server and visitors to your site, look into the JavaScript getTimezoneOffset() method. It returns the time zone difference in

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Function Sequence Error

Question: I have WinNT4.0, Service Pack 5.0 SQL Server7.0, ODBC Driver for SQL 3.70.06.23. I have a servlet program that connects to a JDBC-ODBC bridge and accesses the database. If

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Automatically Logging Users Off

Question: I am running SQL Server 7.0 with 20 user licenses. I have about 40 users, of which only 10 are logged on at once. The problem I am running

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Importing Dates Earlier Than 1752

Question: When I try to import data to SQL, I find a problem in exporting the date values that occur earlier than the year 1752. Since I am working in

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Setup of SQL on the Client Side

Question: I own a company and have two database servers. One is MS SQL6.5 and the other is a Sybase server. I want to access both servers on a client

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Migration from ACT to MS SQL Server

Question: We currently have two contact databases in ACT. One of them is growing exponentially and at 70,000 records we are already experiencing problems. We are considering switching to MS

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Calculating While Querying

Question: I have two fields in my query: SELECT minutes, cost FROM SomeTable However, I would like to calculate the cost/minutes for each row selected. So I tried the following:

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Data Extract and Input Using SQL

Question: We use Dunn & Bradstreet’s Smart Streem System with a subledger that has a high volume of data, and as of this point has to be identified manually and

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Indexing Overkill

Question: If a table has a primary key on columns A, B, and C, is there any advantage to also defining an index on columns A and B? Wouldn’t the

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Field That Can Hold More Than 255 Characters

Question: I need a text (or char) field that can hold more than 255 characters. Something like a Memo field to hold almost unlimited character data. Is this possible? Answer:

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Can Add Records But Not Update Them

Question: I am developing an application package with VB 6.0 and SQL Server 7.0. My problem is that I can add new records to the ADO recordset but I am

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Deleting a Table in SQL

Question: Once a table has been created, is there any way of deleting it in SQL? Answer: Try: DROP TableName

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Updating Two Tables

Question: I have two tables: Yarn {Y_yarn_code,x_code}y_yarn_code being PK Yarn_lot (yl_yarn_code) I need to update yl_yarn_code with x_code where y_yarn-code=yl_yarn_code Answer: Try this: UPDATE Yarn_Lot SET Yarn_Lot.yl_yarn_code = (SELECT x_code

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Setting the Timeout Parameter

Question: I am converting a database from Access to SQL. It is a large database?some 4.5GB large. I get a timeout (1 minute) before I get my response back. Can

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Inserts Inside Views

Question: Is there a way to use an INSERT statement inside of a view? If it is not possible through a view, how do I use an INSERT statement? I

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Remove Unsightly Frame Gaps in Netscape

When you create an HTML frameset using the FRAMEBORDER=”0″ attribute, the frames look fine in Internet Explorer. However, there’s an unsightly white gap between non-white pages when you view the

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Display and Save a Grahic

Question: I have an application in which I have to enter employee info and save their photo. I can do that if I use a data control and bound control

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Migration: Access to SQL Server

Question: I have written an application using VB6/Access. I use DAO. How easy is it to convert the application from Access to SQL Server? Should I make a lot of

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Objects And Classes

Question: I need to compare two object instances of the same class. But I need to compare the contents and not the references (ie: “obj1 is obj2” – will not

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Taking the Null Character Out of a String

Question: Let me describe the problem first: I have a TYPE statement with two variables(appname & dbname). They both are pointing to a global variable that sets the maximum length

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Linking a Listbox to a Database

Question: How can I put a column from my database into a listbox using VB 6.0? Answer: Here’s a quick way to load a listbox using ADO in VB 6.0.

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Combobox and ADO Resultset

Question: After retrieving a resultset, using VB6, from SQL Server, I am easily able to populate a grid by setting the resultset to the grid (i.e. Set DataCombo1.DataSource = GetRs).