Getting frustrated with my lack of SQL-foo ...<BR><BR>I want to update my 'main' table based on the query of an 'editor' table (a copy of the 'main' table with the additional field named delta which ...

Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

I have written an application that takes in a fixed-width file (thanks in no small part to advice I recieved in a seperate thread) and then dissasembles each line, runs a fairly meaty SQL SELECT query ...

In SQL Server, the database can be stored in different files and filegroups. If your database is small (100 MB or less), you do not need to worry too much about files and filegroups. But if you have a ...

The SQL query language was designed to provide programmers with a way to create, maintain and modify databases in a structured way. Using SQL, the programmer can add and remove items from databases as ...