ant執行sql

『壹』 請教高手在sql里in,all,any,some的區別和具體應用范圍

給你些例子：
in 是 確定集合的

SELECT au_lname, state
FROM authors
WHERE state IN ('CA', 'IN', 'MD')
結果：
au_lname state
-------- ----
Yokomoto CA
DeFrance IN
Stringer CA
MacFeather CA
Karsen CA
Panteley MD
Hunter CA

all 是查詢還可以是子查詢
如：

select name from edit
其中name前省略了all.
name前可以加ALL|DISTINCT
all是所有記錄.
distinct是不重復的。

帶【any】的嵌套查詢和【some】的嵌套查詢功能是一樣的。早期的SQL僅僅允許使用【any】，後來的版本為了和英語的【any】相區分，引入了【some】，同時還保留了【any】關鍵詞。
any:
select emp.empno,emp.ename,emp.job,emp.sal from scott.emp where sal >any(select sal from scott.emp where job='MANAGER');
帶any的查詢過程等價於兩步的執行過程。
（1）執行「select sal from scott.emp where job='MANAGER'」
select emp.empno,emp.ename,emp.job,emp.sal from scott.emp where sal >2975 or sal>2850 or sal>2450;

some:
select emp.empno,emp.ename,emp.job,emp.sal from scott.emp where sal =some(select sal from scott.emp where job='MANAGER');

帶some的嵌套查詢與any的步驟相同。
（1）子查詢,執行「select sal from scott.emp where job='MANAGER'」,其結果如圖4.22所示。
（2）父查詢執行下列語句。
―――――――――――――――――――――――――――――――――――――
select emp.empno,emp.ename,emp.job,emp.sal from scott.emp where sal =2975 or sal=2850 or sal=2450;

『貳』 sql server 2000 新建表的SQL語句

--if exists(select name from sysobjects where name='Table' and xtype='p')

if exists (select * from sysobjects where id = object_id(N'Table') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table Table --Table 為表名

create table Table(
欄位名 類型[primary key][not null]
[constrant],
...
...
)

這只是最基本的建表語句，如果其它要求請查看SQL中建表的完整語句。
附SQLServer2005建表完整語句:
CREATE TABLE
[ database_name . [ schema_name ] . | schema_name . ] table_name
( { <column_definition> | <computed_column_definition> }
[ <table_constraint> ] [ ,...n ] )
[ ON { partition_scheme_name ( partition_column_name ) | filegroup
| "default" } ]
[ { TEXTIMAGE_ON { filegroup | "default" } ]
[ ; ]

<column_definition> ::=
column_name <data_type>
[ COLLATE collation_name ]
[ NULL | NOT NULL ]
[
[ CONSTRAINT constraint_name ] DEFAULT constant_expression ]
| [ IDENTITY [ ( seed ,increment ) ] [ NOT FOR REPLICATION ]
]
[ ROWGUIDCOL ] [ <column_constraint> [ ...n ] ]

<data type> ::=
[ type_schema_name . ] type_name
[ ( precision [ , scale ] | max |
[ { CONTENT | DOCUMENT } ] xml_schema_collection ) ]

<column_constraint> ::=
[ CONSTRAINT constraint_name ]
{ { PRIMARY KEY | UNIQUE }
[ CLUSTERED | NONCLUSTERED ]
[
WITH FILLFACTOR = fillfactor
| WITH ( < index_option > [ , ...n ] )
]
[ ON { partition_scheme_name ( partition_column_name )
| filegroup | "default" } ]
| [ FOREIGN KEY ]
REFERENCES [ schema_name . ] referenced_table_name [ ( ref_column ) ]
[ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ]
[ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ]
[ NOT FOR REPLICATION ]
| CHECK [ NOT FOR REPLICATION ] ( logical_expression )
}

<computed_column_definition> ::=
column_name AS computed_column_expression
[ PERSISTED [ NOT NULL ] ]
[
[ CONSTRAINT constraint_name ]
{ PRIMARY KEY | UNIQUE }
[ CLUSTERED | NONCLUSTERED ]
[
WITH FILLFACTOR = fillfactor
| WITH ( <index_option> [ , ...n ] )
]
| [ FOREIGN KEY ]
REFERENCES referenced_table_name [ ( ref_column ) ]
[ ON DELETE { NO ACTION | CASCADE } ]
[ ON UPDATE { NO ACTION } ]
[ NOT FOR REPLICATION ]
| CHECK [ NOT FOR REPLICATION ] ( logical_expression )
[ ON { partition_scheme_name ( partition_column_name )
| filegroup | "default" } ]
]

< table_constraint > ::=
[ CONSTRAINT constraint_name ]
{
{ PRIMARY KEY | UNIQUE }
[ CLUSTERED | NONCLUSTERED ]
(column [ ASC | DESC ] [ ,...n ] )
[
WITH FILLFACTOR = fillfactor
|WITH ( <index_option> [ , ...n ] )
]
[ ON { partition_scheme_name (partition_column_name)
| filegroup | "default" } ]
| FOREIGN KEY
( column [ ,...n ] )
REFERENCES referenced_table_name [ ( ref_column [ ,...n ] ) ]
[ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ]
[ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ]
[ NOT FOR REPLICATION ]
| CHECK [ NOT FOR REPLICATION ] ( logical_expression )
}

<index_option> ::=
{
PAD_INDEX = { ON | OFF }
| FILLFACTOR = fillfactor
| IGNORE_DUP_KEY = { ON | OFF }
| STATISTICS_NORECOMPUTE = { ON | OFF }
| ALLOW_ROW_LOCKS = { ON | OFF}
| ALLOW_PAGE_LOCKS ={ ON | OFF}
}

一個簡單建表例子:
CREATE TABLE films (
code char(5) CONSTRAINT firstkey PRIMARY KEY,
title varchar(40) NOT NULL,
did integer NOT NULL,
date_prod date,
kind varchar(10),
len interval hour to minute
);

『叄』 SQL如何為列增加日期約束

可按如下語句加約束：

altertable表名addconstraintCK_Datecheck(日期欄位betweencast('1900-1-1'asdatetime)andcast('2990-1-1'asdatetime))

check約束簡介：

在資料庫中，CHECK 約束是指約束表中某一個或者某些列中可接受的數據值或者數據格式。例如，可以要求 authors 表的 postcode 列只允許輸入六位數字的郵政編碼。

CHECK 約束可以應用於一個或者多個列，也可以將多個CHECK 約束應用於一個列。

當除去某個表時，對這個表的CHECK 約束也將同時被去除。