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2 : "SmallInt", // ÕûÐÍ
3 : "Int", // ³¤ÕûÐÍ
4 : "Real", // µ¥¾«¶ÈÐÍ
5 : "Float", // Ë«¾«¶ÈÐÍ
6 : "Money", // »õ±Ò
7 : "DateTime", // ÈÕÆÚʱ¼ä
11 : "Bit", // ÊÇ·ñ
13 : "TimeStamp",
17 : "TinyInt", // ×Ö½Ú
72 : "UniqueIdentifier", // ͬ²½¸´ÖÆ ID
128 : "Binary",
129 : "Char",
130 : "NChar",
131 : "Decimal", // СÊý
133 : "DateTime",
135 : "SmallDateTime",
200 : "VarChar",
201 : "Text",
202 : "VarChar", // Îı¾
203 : "Text", // ±¸×¢
204 : "Binary", // ¶þ½øÖÆ
205 : "Image" // OLE ¶ÔÏó
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129,200,201
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Sql="alter table [±íÃû] add column [×Ö¶ÎÃû] varchar(200)"
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Sql="alter table [±íÃû] Alter COLUMN ×Ö¶ÎÃû] varchar(50)"
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Sql="Drop table [±íÃû]"
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sql="alter table [±íÃû] drop [×Ö¶ÎÃû]"
ÐÞ¸Ä×ֶΣºAlter TABLE [±íÃû] Alter COLUMN [×Ö¶ÎÃû] ÀàÐÍ(´óС) NULL
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[×Ö¶Î1] nVarChar(50) default 'ĬÈÏÖµ' null ,
[×Ö¶Î2] ntext null ,
[×Ö¶Î3] datetime,
[×Ö¶Î4] money null ,
[×Ö¶Î5] int default 0,
[×Ö¶Î6] Decimal (12,4) default 0,
[×Ö¶Î7] image null ,
)
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