49 lines
1.1 KiB
Markdown
49 lines
1.1 KiB
Markdown
创建表时指定表组
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表组可以在创建表的时候指定，SQL 查询语法格式如下：
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```javascript
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CREATE TABLE table_name (
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column_name data_type [, column_name data_type]
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) TABLEGROUP tablegroup_name ;
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```
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**示例：创建表时指定表组。**
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如下创建订单表和订单明细表，业务上这两个表经常要关联查询，所以建议放到同一个表组中。
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```javascript
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create table ordr (
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o_w_id int
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, o_d_id int
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, o_id int
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, o_c_id int
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, o_carrier_id int
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, o_ol_cnt int
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, o_all_local int
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, o_entry_d date
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, index iordr(o_w_id, o_d_id, o_c_id, o_id) local
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, primary key ( o_w_id, o_d_id, o_id )
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)tablegroup tpcc_group partition by hash(o_w_id) partitions 6;
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create table ordl (
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ol_w_id int
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, ol_d_id int
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, ol_o_id int
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, ol_number int
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, ol_delivery_d date
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, ol_amount decimal(6, 2)
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, ol_i_id int
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, ol_supply_w_id int
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, ol_quantity int
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, ol_dist_info char(24)
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, primary key (ol_w_id, ol_d_id, ol_o_id, ol_number )
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)tablegroup tpcc_group partition by hash(ol_w_id) partitions 6;
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```
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