Learn how to link tables based on a condition with inner join, left join, right join, and full join in SQL queries.

DICTIONARY tables are often large. Therefore, if you are looking for specific information, use a WHERE clause to retrieve a subset of the rows in a DICTIONARY table. In the following example, only the ...

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 ...

A join combines two or more tables side by side. If you do not specify how to join the tables, you get a Cartesian product. This means that SQL combines each row from the first table with every row ...

SQL partitioning is a process of splitting a table into multiple subtables based on a predefined criterion, such as a column value, a range, a hash function, or a list.

9 best practices for faster SQL queries Retrieve only the columns you need Use CASE instead of UPDATE for conditional column updates Keep large-table queries to a minimum Pre-stage your data ...

How to Reindex SQL Tables. The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can ...

We’re thrilled to announce that you can now connect with SharePoint lists and SQL tables directly within Data workspace in Power Pages! Makers can create virtual tables to connect to existing data ...