If you find yourself taking the same subset of data from a big table and running smaller queries against it, you can speed things up for yourself and others by persisting the subset elsewhere, and ...

If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results. This method won't work in SQL Server, but Microsoft's Trans ...

Both of these have roots in early CODASYL specifications. The third sub-language in SQL declares queries, through the SELECT statement and relational joins.

Oracle, SQL Server, MySQL, Postgres, Sybase, Informix — programmers use the same language to retrieve data from all of these systems. SQL queries are written in an English-like syntax.

When querying a database table, the result set is typically consistent with the current time, that is, at the time the query is executed. However, the ANSI SQL 2011 update to the standards specified ...

The third form of the CREATE TABLE statement stores the results of any query-expression in a table and does not display the output. It is a convenient way to create temporary tables that are subsets ...

The DICTIONARY tables component is specified in the FROM clause of a SELECT statement. DICTIONARY is a reserved libref for use only in PROC SQL. Data from DICTIONARY tables are generated at run time.