Rows disappearing despite LEFT JOIN? Verifying the difference between WHERE and ON with 3 data records

"I thought LEFT JOIN would keep the data on the left, but the number of records decreased when I added WHERE."When creating ...
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 ...
techtarget

Using a LEFT OUTER JOIN vs. RIGHT OUTER JOIN in SQL

In this excerpt from SQL Queries for Mere Mortals: A Hands-On Guide to Data Manipulation in SQL, John L. Viescas and Michael J. Hernandez discuss the LEFT OUTER JOIN vs. the RIGHT OUTER JOIN and offer ...
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 ...
InfoWorld

SQL lessons for NoSQL developers

Because no software developer is complete without at least a passing knowledge of the world’s most popular query language If yo were raised on MongoDB or learned full stack development in a coding ...