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 ...

Have you ever spent hours fine-tuning a Power Query workflow, only to have it break because a column name changed? It’s a frustratingly common scenario for anyone working with dynamic or external data ...

Beginning in Version 7 of SAS software, SAS variable names and member names can be up to 32 characters long. Column names can be case-sensitive also. Some DBMSs allow case sensitive column and table ...