在 MySQL 中创建与另一个表匹配的表?

我正在使用 MySQL。我有一个名为 EMP 的表,现在需要再创建一个具有相同模式、相同列和相同约束的表(EMP _ TWO)。我怎么能这么做?

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To create a new table based on another tables structure / constraints use :

CREATE TABLE new_table LIKE old_table;

To copy the data across, if required, use

INSERT INTO new_table SELECT * FROM old_table;

Create table docs

Beware of the notes on the LIKE option :

Use LIKE to create an empty table based on the definition of another table, including any column attributes and indexes defined in the original table:

CREATE TABLE new_table LIKE original_table; The copy is created using the same version of the table storage format as the original table. The SELECT privilege is required on the original table.

LIKE works only for base tables, not for views.

CREATE TABLE ... LIKE does not preserve any DATA DIRECTORY or INDEX DIRECTORY table options that were specified for the original table, or any foreign key definitions.

Why don't you go like this

CREATE TABLE new_table LIKE Select * from Old_Table;

or You can go by filtering data like this

CREATE TABLE new_table LIKE Select column1, column2, column3 from Old_Table where column1 = Value1;

For having Same constraint in your new table first you will have to create schema then you should go for data for schema creation

CREATE TABLE new_table LIKE Some_other_Table;

If you want to copy only Structure then use

create table new_tbl like old_tbl;

If you want to copy Structure as well as data then use

create table new_tbl select * from old_tbl;

Create table in MySQL that matches another table? Ans:

CREATE TABLE new_table AS SELECT * FROM old_table;

by only using the following command on MySQL command line 8.0 the following ERROR is displayed
[ mysql> select * into at from af;]

ERROR 1327 (42000): Undeclared variable: at

so just to copy the exact schema without the data in it you can use the create table with like statement as follows:

create table EMP_TWO like EMP;

and to copy table along with the data use:

create table EMP_TWO select * from EMP;

to only copy tables data after creating an empty table:

insert into EMP_TWO select * from EMP;