The other day I was reading Dogette’s site, which for years has become a regular part of my day. I noticed that she blogged about her web host having upgraded her account to include multiple MySQLs.
I thought, â€Yo, Jimbo. What is this SQL thing? If hosting services are offering multiples of them, it must be some good shit.â€
I’ve made no secret of my technodoofustry, but my intellectual curiosity remains intact, particularly when I come across something that strikes Dogette as being more blogworthy than dogshit or her continuing squirrel jihad.
So, I popped up Google and figured that, within a minute or two, I would be able to hang with the Geeks of the World and talk some serious SQL Shit.
Here’s what I learned.
SQL (Structured Query Language) is a standard interactive and programming language for getting information from and updating a database. Although SQL is both an ANSI and an ISO standard, many database products support SQL with proprietary extensions to the standard language. Queries take the form of a command language that lets you select, insert, update, find out the location of data, and so forth. There is also a programming interface.
huh?
SQLis a computer language designed for the retrieval and management of data in relational database management systems, database schema creation and modification, and database object access control management.
say what?
An industry-standard language for creating, updating and, querying {relational database management systems}. SQL was developed by {IBM} in the 1970s for use in {System R}. It is the {de facto standard} as well as being an {ISO} and {ANSI} {standard}. It is often embedded in general purpose programming languages. The first SQL standard, in 1986, provided basic language constructs for defining and manipulating {tables} of data; a revision in 1989 added language extensions for {referential integrity} and generalised {integrity} {constraints}. Another revision in 1992 provided facilities for {schema} manipulation and {data administration}, as well as substantial enhancements for data definition and data manipulation. Development is currently underway to enhance SQL into a computationally complete language for the definition and management of {persistent}, complex objects. This includes: generalisation and specialisation hierarchies, {multiple inheritance}, user defined {data types}, {triggers} and {assertions}, support for {knowledge based systems}, {recursive query expressions}, and additional data administration tools. It also includes the specification of {abstract data types} (ADTs), object identifiers, {methods}, {inheritance}, {polymorphism}, {encapsulation}, and all of the other facilities normally associated with object data management. The emerging {SQL3} standard is expected to be complete in 1998. According to Allen G. Taylor, SQL does _not_ stand for “Structured Query Language”. That, like “SEQUEL” (and its pronunciation /see’kw*l/), was just another unofficial name for a precursor of SQL. However, the IBM SQL Reference manual for DB2 and Craig Mullins’s “DB2 Developer’s Guide” say SQL _does_ stand for “Structured Query Language”. {SQL Standards (http://www.jcc.com/sql_stnd.html)}. {An SQL parser (ftp://ftp.uu.net/published/oreilly/nutshell/lexyacc/)} is described in “Lex & Yacc”, by Levine, Mason & Brown published by O’Reilly. {The 1995 SQL Reunion: People, Projects, and Politics (http://www.mcjones.org/System_R/SQL_Reunion_95/)}. [“A Guide to the SQL Standard”, C.J. Date, A-W 1987]. [“SQL for Dummies”, Allen G. Taylor, IDG Books Worldwide]. (2000-07-07)
ooooooooookay.