clone a MySQL table without cloning key, index and auto_incremental item

Dear all,

right now  try to clone a My SQL table using CREATE TABLE IF NOT EXISTS <table name> LIKE <source table>, but found that all index, primary key and auto increment attribute will goes to the new table too.

Any way to just clone the tabele schema with out all these?
LVL 1
marrowyungSenior Technical architecture (Data)Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

StampelCommented:
what happens if you use create table newtable as (select * from oldtable;);
0
marrowyungSenior Technical architecture (Data)Author Commented:
I don't understand this ?

select * from old table only get the data but not the schema without constraint, primary key and index.

please assume that the new table don't exist at the beginning.
0
StampelCommented:
the new table dont exist and it gets created by the SQL statement.
Just wanted you to verify for the rest.
0
Cloud Class® Course: Microsoft Azure 2017

Azure has a changed a lot since it was originally introduce by adding new services and features. Do you know everything you need to about Azure? This course will teach you about the Azure App Service, monitoring and application insights, DevOps, and Team Services.

marrowyungSenior Technical architecture (Data)Author Commented:
so you mean you didnt' try it before and you think it works, right?
0
marrowyungSenior Technical architecture (Data)Author Commented:
it seems working fine.
0
marrowyungSenior Technical architecture (Data)Author Commented:
it can be use with IF NOT EXISTS  statement ?
0
marrowyungSenior Technical architecture (Data)Author Commented:
but one thing, the new table has ALL DATA from the original table, I don't want the data, is it possible ?
0
StampelCommented:
Then use :
create table newtable as select * from oldtable limit 0;

you will get new empty table as you wish :)
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
marrowyungSenior Technical architecture (Data)Author Commented:
I just done a test on this schema:

CREATE TABLE `SPI_INS_CS` (
  `GROUP_SR_ID` bigint(19) NOT NULL,
  `ORDER_TYPE` varchar(3) NOT NULL,
  `SERVICE_TYPE` varchar(100) NOT NULL,
  `PRODUCT_TYPE` varchar(50) NOT NULL,
  `CUSTOMER_ID` varchar(6) NOT NULL,
  `END_CUSTOMER_ID` varchar(6) DEFAULT NULL,
  `ACCT_NO` varchar(30) DEFAULT NULL,
  `MASTER_SR` bigint(19) DEFAULT NULL,
  `STATUS` varchar(2) NOT NULL,
  `CREATED_BY` varchar(12) NOT NULL,
  `CREATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `UPDATED_BY` varchar(12) DEFAULT NULL,
  `UPDATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `IS_OBSOLETE` int(1) NOT NULL DEFAULT '0',
  `SRC_UPDATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `PRODUCT_ID` varchar(3) NOT NULL DEFAULT ' ',
  PRIMARY KEY (`GROUP_SR_ID`),
  KEY `FK_CS_CUSTOMER` (`CUSTOMER_ID`),
  CONSTRAINT `FK_CS_CUSTOMER` FOREIGN KEY (`CUSTOMER_ID`) REFERENCES `SPI_INS_Customer` (`CUSTOMER_ID`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Open in new window


and the result is :

CREATE TABLE `SPI_INS_CS_clonetest` (
  `GROUP_SR_ID` bigint(19) NOT NULL,
  `ORDER_TYPE` varchar(3) CHARACTER SET utf8 NOT NULL,
  `SERVICE_TYPE` varchar(100) CHARACTER SET utf8 NOT NULL,
  `PRODUCT_TYPE` varchar(50) CHARACTER SET utf8 NOT NULL,
  `CUSTOMER_ID` varchar(6) CHARACTER SET utf8 NOT NULL,
  `END_CUSTOMER_ID` varchar(6) CHARACTER SET utf8 DEFAULT NULL,
  `ACCT_NO` varchar(30) CHARACTER SET utf8 DEFAULT NULL,
  `MASTER_SR` bigint(19) DEFAULT NULL,
  `STATUS` varchar(2) CHARACTER SET utf8 NOT NULL,
  `CREATED_BY` varchar(12) CHARACTER SET utf8 NOT NULL,
  `CREATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `UPDATED_BY` varchar(12) CHARACTER SET utf8 DEFAULT NULL,
  `UPDATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `IS_OBSOLETE` int(1) NOT NULL DEFAULT '0',
  `SRC_UPDATED_DT` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  `PRODUCT_ID` varchar(3) CHARACTER SET utf8 NOT NULL DEFAULT ' '
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

Open in new window


you can see that a lot of :

CHARACTER SET utf8

has been created, how is it and do it impact in any way ?
0
StampelCommented:
utf8 charset is the default encoding on most softwares, there is most chance it will have no impact.
But you will have to verify it for your applications using this table.

You will find more details on MySQL charset here.
http://dev.mysql.com/doc/refman/5.5/en/charset.html
0
marrowyungSenior Technical architecture (Data)Author Commented:
ok
0
marrowyungSenior Technical architecture (Data)Author Commented:
Dear all,


please help to answer this :"

http://www.experts-exchange.com/Database/MySQL/Q_28570501.html
0
marrowyungSenior Technical architecture (Data)Author Commented:
0
marrowyungSenior Technical architecture (Data)Author Commented:
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
MySQL Server

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.