SQL Basics: SELECT statement options—covers the SELECT statement in detail and explains aggregate functions. Search within a result set The concept of a subselect is simple: One select query is ...

Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Read this SQL tutorial ... your database server, but for occasional use, they can save a lot of time. When to use SELECT, JOIN, UNION or subqueries When it comes to database queries, there are ...

That capability is enhanced in SQL Server 2016, the first-ever version that lets developers query within JSON strings as if the JSON ... INSERT INTO Countries SELECT * FROM OPENJSON(@country) WITH (id ...

As I discussed in an earlier column, SQL Server keeps a plan cached for each query it sees (assuming the query requires planning in the first place, of course). That's great for speeding up processing ...

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization. In this installment, you will learn about another ...

I have a test server hosting several sites using SQL Server Express and SQL Management Studio Express. <BR><BR>I've seen one site have an occasional issue where queries to a particular table (the ...