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1. Learn MySql at
AMC Square Learning

2. What Is MySQL?
• A fast, reliable, easy-to-use, multi-user multi-threaded relational
database system.
• It is freely available and released under GPL (GNU General Public
License ).
Why Use MySQL ?
• MySQL server can handle very large databases.
• Offers rich and very useful set of functions.
• Connectivity, speed and security make MySQL very suited for
accessing database on a network.
• A lot of contributed software available.

3. What Does MySQL Offer ?
•A privilege and password system that is very flexible
and secure and allows host-based verification.
•Multi-threaded request-handling using kernel
thread.
•Replication features.
•Very actively developed.
•Memory leak proof.

4. Types of table in MySql
• Creates a .frm file that holds the table and column definition.
• Syntax for defining table type is ..
CREATE TABLE test ( )
TYPE=HEAP ..
• Categorization of types : Transaction safe type and Non
transaction safe type.
• Transaction Safe table types allow rollbacks, restore changes if
update fails ,etc. .
• Non Transaction Safe table types are much faster ,use less disk
space as well as memory for updates.

5. Merging the tables
• A collection of identical My example tables which are used
collectively.
• FOR ex. :
CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY
KEY, message CHAR(20));
CREATE TABLE t2 (a INT AUTO_INCREMENT PRIMARY
KEY, message CHAR(20)) ;
CREATE TABLE total (a INT NOT NULL, message
CHAR(20), KEY(a)) TYPE=MERGE UNION=(t1,t2)
select ,insert and Operations update .are allowed

6. How To SLAVE
•Upgrade both slave and master to 3.23.15 or higher.
• PUT THESE IN my.cnf of SLAVE
• master-host,user,passwd
• server-id=< unique no>= 1 & <=2^32-1
• master-connect-retry !! (keep trying)
• master-info-file
• replicate-rewrite-db
• skip-slave-start
• Restart the slave(s)

7. How To SLAVE cont.…
•Take a snapshot of all the tables/databases on the master
•Use command LOAD TABLE <tblname> FROM MASTER
(3.23.23)+
• SLAVE START/STOP
• FLUSH SLAVE

8. HOW TO MASTER
• log-bin , FLUSH MASTER , FLUSH SLAVE
• When you start the slave thread will be created
• Tables are not Locked
• SET SQL_LOG_BIN=0/1
• CHANGE MASTER TO master_def_list

9. Thank
you

10. Thank
you