ON table1.column1 = table2.column1; The correlating column is still the same, table2.column1, even though the query doesn’t retrieve data from this column. Using subqueries ...

Denny's SQL Secrets Troubleshoot Slow-Running Queries In SQL Server Denny breaks down how to identify and fix speed issues in multiple versions of SQL Server. By Denny Cherry 12/11/2013 ...

Fortunately, it isn’t difficult to transpose column values into a single cell as long as you don’t want to group the results. In that situation, you can use Microsoft Excel Power Query.

SQL Server 2016 provides new support for working with JSON objects. In a previous column, I discussed how to generate JSON from SQL queries. This column looks at the reverse process: accepting JSON ...

SQL Server 2022 takes that ability a few steps further. Last year, I wrote a column on the introduction of query store hints into Azure SQL Database.

Add Constraint LastUpdateMustBeJson Check (ISJSON(LastUpdate )> 0) Querying JSON A typical task with a JSON column is to find a row based on the value of a specific JSON property. For that you’ll use ...