---
{
    "title": "CREATE TABLE LIKE",
    "language": "zh-CN"
}
---

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# CREATE TABLE LIKE

## description

该语句用于创建一个表结构和另一张表完全相同的空表，同时也能够可选复制一些rollup。
语法：

```
    CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [database.]table_name LIKE [database.]table_name [WITH ROLLUP (r1,r2,r3,...)]
```

说明:
    1. 复制的表结构包括Column Definition、Partitions、Table Properties等
    2. 用户需要对复制的原表有`SELECT`权限
    3. 支持复制MySQL等外表
    4. 支持复制OLAP Table的rollup

## Example
    1. 在test1库下创建一张表结构和table1相同的空表，表名为table2

        CREATE TABLE test1.table2 LIKE test1.table1
    
    2. 在test2库下创建一张表结构和test1.table1相同的空表，表名为table2

        CREATE TABLE test2.table2 LIKE test1.table1

    3. 在test1库下创建一张表结构和table1相同的空表，表名为table2，同时复制table1的r1，r2两个rollup

        CREATE TABLE test1.table2 LIKE test1.table1 WITH ROLLUP (r1,r2)

    4. 在test1库下创建一张表结构和table1相同的空表，表名为table2，同时复制table1的所有rollup

        CREATE TABLE test1.table2 LIKE test1.table1 WITH ROLLUP

    5. 在test2库下创建一张表结构和test1.table1相同的空表，表名为table2，同时复制table1的r1，r2两个rollup

        CREATE TABLE test2.table2 LIKE test1.table1 WITH ROLLUP (r1,r2)

    6. 在test2库下创建一张表结构和test1.table1相同的空表，表名为table2，同时复制table1的所有rollup

        CREATE TABLE test2.table2 LIKE test1.table1 WITH ROLLUP

    7. 在test1库下创建一张表结构和MySQL外表table1相同的空表，表名为table2

        CREATE TABLE test1.table2 LIKE test1.table1

## keyword

```
    CREATE,TABLE,LIKE

```