Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

If tables selected for joining have a relation defined between them, Query and Reporting joins them automatically; see Joining Tables Automatically for more information. If the tables do not have a ...

Figure A We’ll use these two tables to demonstrate how JOINs affect your queries. Notice that the Donors table contains five records, each representing a different person.

How to Create a Table From Query Results in Microsoft SQL. If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results.

I’ve created a script that monitors a table in a SQL Server database. I’m only interested in one column in the table: TimeStamp. If the maximum (newest) value in TimeStamp is more than 30 ...

Even if generative AI hides SQL behind the curtain, it will continue to play a critical role in how we interact with and use data.

If you are working with Excel spreadsheets or workbooks, juggling multiple tables of data, at some time you might need to combine them into one. Rather ...

While temporal data support is something that has existed in the past within other database platforms, it is a newly available feature with the RTM version of SQL Server 2016. In case you haven't ...