资讯

Creating SQL Stored Procedures via SQL Server is easier than you might have originally thought, so let us explain what to do.
PROC SQL allows you to specify the ORDER BY clause in the CREATE VIEW statement. Every time a view is accessed, its data are sorted and displayed as specified by the ORDER BY clause. This sorting on ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.