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 ...

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 ...

The aim of this feature is to allow truncating a table programmatically in Scala. Today, the only way to truncate a Delta table is by executing a SQL statement, like spark.sql("TRUNCATE TABLE foo"). A ...

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 ...

When designing objects in SQL Server, we must follow certain best practices. For example, a table should have primary keys, identity columns, clustered and unclustered indexes, data integrity and ...

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 take several seconds; with the ...

I've said it before and I'll say it again: If you want to speed up your application, don't look at your code, look at your data access. The two slowest things you can do in application development are ...