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Originally Posted by Brinnie
Would you consider the Quick Reply box a poorly written query?
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The quick reply box is not a query. A query is a call to the database to retrive information from the database (be it stored on the hdd or in memory), that is written in SQL.
What is SQL?
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SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as update data on a database, or retrieve data from a database. Some common relational database management systems that use SQL are: Oracle, Sybase, Microsoft SQL Server, Access, Ingres, etc. Although most database systems use SQL, most of them also have their own additional proprietary extensions that are usually only used on their system. However, the standard SQL commands such as "Select", "Insert", "Update", "Delete", "Create", and "Drop" can be used to accomplish almost everything that one needs to do with a database.
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There is no one thing that seperates poor SQL from proper SQL, like anything with coding it's something you learn over time.
Here is a good place to get started if you want to learn more about SQL:
http://sqlcourse.com/intro.html