By George Reese
ISBN-10: 0596516541
ISBN-13: 9780596516543
That can assist you be extra effective on your paintings, this convenient pocket reference promises immediate reminders on the way to use vital MySQL services, in particular at the side of key components of the LAMP open resource infrastructure. This strong database method is so wealthy in positive aspects that no administrator or programmer can remain acquainted with them all. MySQL Pocket Reference is a perfect on-the-job significant other, good equipped that will help you locate and adapt the statements you wish -- quickly.
Updated for the most recent types of this renowned database, this version covers many complicated good points which have been additional to MySQL 5.0 and 5.1, together with a bit devoted to saved techniques and triggers. After a quick creation on install and preliminary setup, the e-book explains:
How to configure MySQL, comparable to environment the foundation password
MySQL information kinds, together with numerics, strings, dates, and intricate types
SQL syntax, instructions, facts forms, operators, and functions
Arithmetic, comparability and logical operators
Aggregate and basic functions
Stored tactics and triggers, together with approach definition, method calls, method administration, cursors, and triggers
You don't have time to forestall and thumb via an exhaustive reference whilst you're difficult at paintings. This transportable and reasonable consultant is sufficiently small to slot into your pocket, and provides you a handy reference so that you can seek advice at any place. in the event you achieve a sticking element and wish to get to an answer fast, the MySQL Pocket Reference is the e-book you must have.
Read or Download MySQL Pocket Reference: SQL Functions and Utilities (2nd Edition) PDF
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Additional resources for MySQL Pocket Reference: SQL Functions and Utilities (2nd Edition)
Sample text
If you really wish to get a full count of all deleted rows, use a WHERE clause with an expression that always evaluates to true: DELETE FROM TBL WHERE 1 = 1; The LOW_PRIORITY modifier causes MySQL to wait until no clients are reading from the table before executing the delete. For MyISAM tables, QUICK causes the table handler to suspend the merging of indexes during the DELETE, to enhance the speed of the DELETE.
1, the ENGINE parameter must be either NDB or NDBCLUSTER. CREATE TRIGGER CREATE [DEFINER = { user | CURRENT_USER }] TRIGGER trigger _name trigger_time trigger_event ON table FOR EACH ROW statement Creates a trigger in MySQL. You may define at most one trigger per table/time/event. For example, you may define a trigger to run on BEFORE any INSERT into the person table and another to run AFTER an INSERT into the person table. You cannot, however, define multiple triggers to run BEFORE an INSERT into the person table.
A CREATE clause that defines a column consists of the name of the new table followed by any number of field definitions. The syntax of a field definition is: column type [NOT NULL | NULL] [DEFAULT value] [AUTO_INCREMENT] [PRIMARY KEY] [reference] The modifiers in this syntax are: AUTO_INCREMENT Indicates that the column should be automatically incremented using the current greatest value for that column. Only whole number columns may be auto-incremented. DEFAULT value This attribute assigns a default value to a field.
MySQL Pocket Reference: SQL Functions and Utilities (2nd Edition) by George Reese
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