SQL Server/T-SQL/System/sp helpindex — различия между версиями

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м (1 версия)
 
(нет различий)

Версия 13:46, 26 мая 2010

Define primary key in table creation

 

3> CREATE TABLE customer
4> (
5> cust_id      int          IDENTITY  NOT NULL,
6> cust_name    varchar(30)  NOT NULL,
7> CONSTRAINT customer_PK PRIMARY KEY (cust_id)
8> )
9> GO
1>
2> EXEC sp_helpindex customer
3> GO
index_name                                                                                                                       index_description
                                                                                                                                            index_keys





-------------------------------------------------------------------------------------------------------------------------------- -----------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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------------------------------------------------------------------
customer_PK                                                                                                                      clustered, unique, primary key located on PRIMARY
                                                                                                                                            cust_id





1>
2> drop table customer;
3> GO
1>