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.<BR><BR>Essentially, I have two tables. Both have columns called "TestId" and "OperationId". Both are ...
TechRepublic

How to query multiple tables in SQL

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 ...
Ars Technica

SQL Server > How to do an Update query w/ Joins?

I've done this sort of thing many a time in Access, but SQL Server gives me errors when I try...<P>We have a table for company employees:<P>Employees<BR> * EmpID (key)<BR> * EmpFirstName<BR> * ...
Visual Studio Magazine

Working with JSON in SQL Queries

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of. SQL Server 2016 provides ...
InfoWorld

10 more do’s and don’ts for faster SQL queries

Everyone wants faster database queries, and both SQL developers and DBAs can turn to many time-tested methods to achieve that goal. Unfortunately, no single method is foolproof or ironclad. But even ...