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SQL Tutorials home - top of the page - email

Today SQL is the standard for getting information from and updating to a database. All serious databases support it (Oracle, Sybase, DB2, and many others).  SQL queries let you select, insert, update, find out the location of data, and so forth.
Assignment - look up what is SQL (it is a special programming language) on www.whatis.com

SELECT DISTINCT you FROM ALL_PEOPLE
WHERE database_knowledge > 0

Transact SQL - extention of standard SQL supported by 3 big databases:
    Sybase,     DB2 ver.7,     and Microsoft SQL Server
PL/SQL - Procedural Language extension to SQL supported by Oracle

SQLJ - an alternative to JDBC - a way to include SQL into java (Oracle, IBM, etc.)
 
 
Read these 2 short SQL tutorials:
sql_tut - short SQL introduction (using Microsoft syntax)
sql_sybase - short SQL intro (Sybase SQL server)
Solve these SQL problems:
sql_test0 - 6 SQL problems with answers
sql_test1 - more than 60 problems with answers (from SQL tutor software)

www.mssqlserver.com/tsql/ - download a course: TSQL, SQL, database design, data warehousing, replication, and OLAP
www.cosc.canterbury.ac.nz/~tanja/sql-tut.html - download SQL tutor program (FREE and good)
nainternet.net/softwares/sql/sqlenglish.shtml - yet another SQL tutorial
www.dcs.napier.ac.uk/~andrew/sql/ - SQL tutorial and tests

sqlcourse.com/ - SQL tutorial
www.arsdigita.com/books/sql/ - good course by Philip Greenspun
cesspool.crseo.ucsb.edu:8679/tutorial.htm -
www.google.com/search?q=tutor+SQL -
directory.google.com/Top/Computers/Programming/Languages/SQL/ - SQL on Google


 
books home - top of the page - email

SQL:
Lan Times Guide to Sql James R. Groff, Paul N. Weinberg
The Practical Sql Handbook : Using Structured Query Language Judith S. Bowman et al (1996)
Joe Celko's SQL for Smarties: Advanced SQL Programming - by Joe Celko. Paperback (October 8, 1999)

 
some useful commands home - top of the page - email

Some useful commands:

select * from ABC where 1=2
 
Sybase: Oracle: DB2: MySQL:
isql sqlplus db2 mysql
cat file | mysql > result
set rowcount 5
select * from ABC
select * from EMP
where rownum <= 5
select * from ABC
fetch first 5 rows only
select * from ABC
limit 5,10;  # Retrieve rows 6-15

select * from ABC
limit 5;  # retrieve first 5 rows, equivalent to: limit 0,5

use some_db
go
connect user@con_string use some_db;
sp_help
sp_help some_table
sp_helpdb
sp_helptext 
help
select tname from tab;
select table_name from dict where table_name like '%USER%';
...
show databases;
show tables;

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