文件名称：SQL The Ultimate Beginner's Guide to Learn SQL Programming
文件大小：1.79MB
文件格式：PDF
更新时间：2022-12-16 06:15:46
SQL
The SQL (the Structured Query Language , Structured Query Language ) is a special language used to define data, provide access to data and their processing. The SQL language refers to nonprocedural languages - it only describes the necessary components (for example, tables) and the desired results, without specifying how these results should be obtained. Each SQL implementation is an add-on on the database engine, which interprets SQL statements and determines the order of accessing the database