SQL Server/T-SQL Tutorial/System Settings/NOCOUNT

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Версия от 10:23, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Using SET NOCOUNT OFF to suppress count messages.

6> CREATE TABLE sales(
7>    stor_id        char(4)           NOT NULL,
8>    ord_num        varchar(20)       NOT NULL,
9>    ord_date       datetime          NOT NULL,
10>    qty            smallint          NOT NULL,
11>    payterms       varchar(12)       NOT NULL,
12>    title_id       varchar(80)
13> )
14> GO
1> insert sales values("1", "QA7442.3", "09/13/94", 75, "ON Billing","1")
2> insert sales values("2", "D4482",    "09/14/94", 10, "Net 60",    "1")
3> insert sales values("3", "N914008",  "09/14/94", 20, "Net 30",    "2")
4> insert sales values("4", "N914014",  "09/14/94", 25, "Net 30",    "3")
5> insert sales values("5", "423LL922", "09/14/94", 15, "ON Billing","3")
6> insert sales values("6", "423LL930", "09/14/94", 10, "ON Billing","2")
7> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2>
3> SET NOCOUNT ON
4>
5> DECLARE @intMinQty INT, @intNumOrders INT, @chrOutputText CHAR(60)
6>
7> SELECT @intMinQty = 15
8> SELECT @intNumOrders = COUNT(*) FROM sales WHERE qty > @intMinQty
9>
10> SELECT @chrOutputText = "There are "
11>                             + CONVERT(VARCHAR,@intNumOrders)
12>                             + " orders with a quantity greater than "
13>                             + convert(VARCHAR, @intMinQty)
14> PRINT @chrOutputText
15>
16> SET NOCOUNT OFF
17> GO
There are 3 orders with a quantity greater than 15
1> drop table sales;
2> GO