SQL Basics, Operating on Data in SQL, Creating Tables in SQL, and eight other interactive SQL courses. Some courses have free test drives, after which there may be a fee.

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 ...

From a T-SQL perspective, the SchemaOnly option forces the SQLDataReader to precede the command with a SET FMTONLY ON statement. Listing 1 shows the Visual Basic ADO.NET source code to obtain a data ...

Another benefit of SQL comprehension is that it adds a new layer of extremely detailed metadata to dbt Labs’ table- and column-lineage, enhancing data classification to support more nuanced ...