Ars Technica

[SQL] Need help forming SQL query for Inner Join via OleDB (MS Access)

I'm writing some code in C# where I need to (inner?) join two tables into a DataSet / DataTable. Essentially, I have two tables. Both have columns called "TestId" and "OperationId". Both are unsigned ...
Ars Technica

Settle an argument: SQL update with left join + isnull() vs inner join

I've been in an argument with one of our devs that took an update statement with an inner join and made it a left join (because inner was missing some records somehow in the left table - tableB in ...
TechRepublic

Understand the effects of NULLs on inner and outer JOINs

In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs. SQL Server developers must understand two things: the difference ...
InfoWorld

SQL unleashed: 9 ways to speed up your SQL queries

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...