I have users table in my database and If you want to take all user rows data into file, then execute below query..
SELECT id,user_name, address into OUTFILE ‘d://userdbdump.txt’ FIELDS TERMINATED BY ‘,’ FROM users
Archive for the ‘Databases’ Category
Taking dump of query result into file
Posted in Mysql, tagged dump to file, query dump on March 4, 2009 | Leave a Comment »
Joins In MySql
Posted in Mysql, tagged joins, Mysql on December 18, 2008 | 1 Comment »
Create table by using these statements
create table apples (variety char(10) not null primary key, price int not null);
create table oranges (variety char(10) not null primary key, price int not null);
insert into apples(variety, price) values(‘Fuji’,5),(‘Gala’,6);
insert into oranges(variety, price) values(‘Valencia’,4),(‘Navel’,5);
mysql> select * from apples;
+———+——-+
| variety | price |
+———+——-+
| Fuji | 5 [...]
Normalization
Posted in Databases on December 18, 2008 | Leave a Comment »
Normalization is the process of efficiently organizing data in a database. There are two goals of the normalization process: eliminating redundant data (for example, storing the same data in more than one table) and ensuring data dependencies make sense (only storing related data in a table). Both of these are worthy goals as [...]
SQL Quick Reference
Posted in SQL, tagged sql quick reference on November 19, 2008 | Leave a Comment »
SQL Statement
Syntax
AND / OR
SELECT column_name(s)
FROM table_name
WHERE condition
AND|OR condition
ALTER TABLE
ALTER TABLE table_name
ADD column_name datatype
or
ALTER TABLE table_name
DROP COLUMN column_name
AS (alias)
SELECT column_name AS column_alias
FROM table_name
or
SELECT column_name
FROM table_name AS table_alias
BETWEEN
SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2
CREATE DATABASE
CREATE DATABASE database_name
CREATE TABLE
CREATE TABLE table_name
(
column_name1 data_type,
column_name2 data_type,
column_name2 data_type,
…
)
CREATE INDEX
CREATE INDEX index_name
ON table_name (column_name)
or
CREATE UNIQUE INDEX index_name
ON table_name (column_name)
CREATE VIEW
CREATE VIEW view_name AS
SELECT [...]
Finding last inserted autoincrement id value
Posted in Mysql on October 24, 2007 | Leave a Comment »
Suppose you have table like
User Table with fields id(auto increment) and name
address table with field id(auto increment), address, user_id(foreign key)
when u inserted one row in user table then u want the last inserted id value in user table to insert it into address table in the field user_id for that corresponding user address entry
use mysql [...]