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Introducing several ways to replicate tables in MySQL

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Introducing several ways to replicate tables in MySQL

Several ways to copy a table

  • Copy onlytable structure

create table tableName like someTable;
Only the table structure, including primary keys and indexes, will be copied, but the table data will not be copied

  • Only the table data will be copied
##create table tableName select * from someTable;

Copy the general structure of the table and all data, and will not copy the primary key, index, etc.

  • Complete copy
create table tableName like someTable;

insert into tableName select * from someTable;
Complete in two steps, copy first Table structure, then insert data

Related free learning recommendations:

mysql video tutorial

Example

    Connect to the database, use the student database and view all data tables
  1. USE student;SHOW TABLES;
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Introducing several ways to replicate tables in MySQL 2. Create the t1 data table and insert two items Record and set the index for the name field

CREATE TABLE t1(
	id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
	name VARCHAR(50) COMMENT '姓名');INSERT INTO t1(name) VALUES('张三');INSERT INTO t1(name) VALUES('李四');CREATE INDEX idx_name ON t1(name);
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Introducing several ways to replicate tables in MySQL 3. View all records of the t1 data table

SELECT * FROM t1;
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Introducing several ways to replicate tables in MySQL 4. View the index of the t1 data table

SHOW INDEX FROM t1\G;
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Introducing several ways to replicate tables in MySQL 5. Create the t2 data table (only copy the table structure)

CREATE TABLE t2 LIKE t1;
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Introducing several ways to replicate tables in MySQL 6. View the records of the t2 data table

SELECT * FROM t2;
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Introducing several ways to replicate tables in MySQL 7. View the index of the t2 data table

SHOW INDEX FROM t2\G;
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Introducing several ways to replicate tables in MySQL 8. View the structure of the t2 data table

SHOW CREATE TABLE t2\G;
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Introducing several ways to replicate tables in MySQL 9. Create the t3 data table ( Only copy table data)

CREATE TABLE t3 SELECT * FROM t1;
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Introducing several ways to replicate tables in MySQL 10. View the table structure of the t3 data table

SHOW CREATE TABLE t3\G;
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Introducing several ways to replicate tables in MySQL 11. View the index of the t3 data table

SHOW INDEX FROM t3;
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Introducing several ways to replicate tables in MySQL 12. View all records of the t3 data table

SELECT * FROM t3;
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Introducing several ways to replicate tables in MySQL 13. Create t4 data table (complete copy)

CREATE TABLE t4 LIKE t1;INSERT INTO t4 SELECT * FROM t1;
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Introducing several ways to replicate tables in MySQL 14. View the structure of t4 data table

SHOW CREATE TABLE t4\G;
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Introducing several ways to replicate tables in MySQL 15. View the index of the t4 data table

SHOW INDEX FROM t4\G;
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Introducing several ways to replicate tables in MySQL 16. View all records of the t4 data table

SELECT * FROM t4;
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Introducing several ways to replicate tables in MySQL

Note: This article is a summary of the blogger’s MySQL learning and does not support any commercial use. Please indicate the source when reprinting! If you also have a certain interest and understanding in MySQL learning, you are welcome to communicate with bloggers at any time~

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