Tip Bank

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How to use Union on two databases?

Question: I want to use Union to union two different tables, but they are in different databases. An error message told me that I can’t use Union in this way.

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Identity?

Question: I’m trying to get the Identity of records as I insert them into my database. I have tried: OrderID = DataConn.Execute(“SELECT @@IDENTITY FROM Orders”). But this returns a syntax

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Reporting duplicates

Question: I am having trouble figuring out how to make a report dealing with duplicates. I need to selcet from a table only instances where the first 10 characters of

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Auto assigning primary key values

Question: Is there a way to have SQL Server assign values to key fields automatically, so that every time a new record is added it just increases the prior record’s

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Finding the Latest Date in SQL

Question: I have a table with a datefield as part of the key. This was needed because it stores historical information. I need to know how to write an SQL

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Generate Numbers

Question: I have a field in one of my SQL Server Database tables which I want to increment every time a user enters a new record. I thought about a

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Avoid Automatic Transaction Aborts Under MTS

If you are developing COM components that run under MTS (Microsoft Transaction Server), you will notice that many times your transaction automatically gets aborted. You can easily avoid this situation

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Don’t Import All Items

The import directive in Java can sometimes be confusing. For example, if you put this line at the top of your source file: import java.util.*; Do all the classes in