| ASP创建ACCESS表或添加字段 |
创建一张空表：
7xyb4u http://blog.numino.net/
Sql="Create TABLE [表名]"
t9CcEe http://blog.numino.net/
创建一张有字段的表：
0706jJ http://blog.numino.net/
Sql="Create TABLE [表名]([字段名1] MEMO NOT NULL, [字段名2] MEMO, [字段名3] COUNTER NOT NULL, [字段名4] DATETIME, [字段名5] TEXT(200), [字段名6] TEXT(200))
wv5s69 http://blog.numino.net/
字段类型：
OymXZ3 http://blog.numino.net/
2 : "SmallInt", // 整型
4vJ5e2 http://blog.numino.net/
3 : "Int", // 长整型
PDvTVG http://blog.numino.net/
4 : "Real", // 单精度型
y8CTPy http://blog.numino.net/
5 : "Float", // 双精度型
xhAu9g http://blog.numino.net/
6 : "Money", // 货币
yAt4pA http://blog.numino.net/
7 : "DateTime", // 日期时间
Pu9F2M http://blog.numino.net/
11 : "Bit", // 是否
CO0s7b http://blog.numino.net/
13 : "TimeStamp",
ocpvTT http://blog.numino.net/
17 : "TinyInt", // 字节
LWhS5a http://blog.numino.net/
72 : "UniqueIdentifier", // 同步复制 ID
xqOqWa http://blog.numino.net/
128 : "Binary",
L663zv http://blog.numino.net/
129 : "Char",
JTKaHP http://blog.numino.net/
130 : "NChar",
R7k3X9 http://blog.numino.net/
131 : "Decimal", // 小数
prlyVY http://blog.numino.net/
133 : "DateTime",
nR60DE http://blog.numino.net/
135 : "SmallDateTime",
2OIkFO http://blog.numino.net/
200 : "VarChar",
NDMDWT http://blog.numino.net/
201 : "Text",
f791Fn http://blog.numino.net/
202 : "VarChar", // 文本
3xM6qF http://blog.numino.net/
203 : "Text", // 备注
EG0Ahg http://blog.numino.net/
204 : "Binary", // 二进制
BqmPtA http://blog.numino.net/
205 : "Image" // OLE 对象
10v3wm http://blog.numino.net/
以下字段为无编码字段（NChar、NVarchar、NText型）
W5W7Kt http://blog.numino.net/
8,128,130,202,203,204,205
55VuEi http://blog.numino.net/
以下字段为按当前系统内码编码的字段（Asp中可用CodePage=936纠正为gb2312内码）
TPj5d2 http://blog.numino.net/
129,200,201
eKUnZm http://blog.numino.net/
在现有的表中增加字段：
eW93O7 http://blog.numino.net/
Sql="alter table [表名] add column [字段名] varchar(200)"
b1a340 http://blog.numino.net/
修改字段类型：
A41JUs http://blog.numino.net/
Sql="alter table [表名] Alter COLUMN 字段名] varchar(50)"
JE9GWa http://blog.numino.net/
删除表：
QT9fCF http://blog.numino.net/
Sql="Drop table [表名]"
FRhamG http://blog.numino.net/
删除字段：
5ExCcW http://blog.numino.net/
sql="alter table [表名] drop [字段名]"
l4623G http://blog.numino.net/
修改字段：Alter TABLE [表名] Alter COLUMN [字段名] 类型(大小) NULL
WQ6bxH http://blog.numino.net/
新建约束：Alter TABLE [表名] ADD CONSTRAINT 约束名 CHECK ([约束字段] <= '2007-1-1')
LE8yqS http://blog.numino.net/
删除约束：Alter TABLE [表名] Drop CONSTRAINT 约束名
P7130X http://blog.numino.net/
新建默认值：Alter TABLE [表名] ADD CONSTRAINT 默认值名 DEFAULT 'Gziu.CoM' FOR [字段名]
GeNyZj http://blog.numino.net/
删除默认值：Alter TABLE [表名] Drop CONSTRAINT 默认值名
7kH1jO http://blog.numino.net/
=======================================
Cmrmc8 http://blog.numino.net/
conn.open connstr
pFK167 http://blog.numino.net/
sql="alter table [tablename] add hehe char(20)"
R40WtE http://blog.numino.net/
conn.execute(sql)
2XphMe http://blog.numino.net/
response.write("添加成功")
V5I0o9 http://blog.numino.net/
ACCESS新建数据库和表还不简单，有了表字段初始化就更简单
1D8QqB http://blog.numino.net/
=======================================
4hKHSI http://blog.numino.net/
<%
8pSEnl http://blog.numino.net/
session("tablen")="news"
SSjncY http://blog.numino.net/
'news是已存在的表名
Z2QeWF http://blog.numino.net/
session("fieldsn")="c"
NGPKgg http://blog.numino.net/
'要添加的字段名
0pdNWn http://blog.numino.net/
connectionstring="provider=microsoft.jet.oledb.4.0;data source="&server.MapPath("data/qq.mdb")
rD8gya http://blog.numino.net/
set conn=server.createobject("adodb.connection")
wKL04r http://blog.numino.net/
conn.OPEN connectionstring
22L208 http://blog.numino.net/
jhsql = " Alter Table "&session("tablen")&" add column "&session("fieldsn")&" real "
9ea1Am http://blog.numino.net/
conn.execute(jhsql)
7k9cV6 http://blog.numino.net/
%>
7L4jd4 http://blog.numino.net/
================================
AbtQNA http://blog.numino.net/
生成数据表，添加字段，其中id字段为自动增加，测试通过~~
obdb8c http://blog.numino.net/
Sub GenAutoIncrementFld()
jsG4zI http://blog.numino.net/
set cn=server.CreateObject("ADODB.Connection")
3wchJc http://blog.numino.net/
set clx=server.CreateObject("ADOX.Column")
eiOYLO http://blog.numino.net/
set cat=server.CreateObject("ADOX.Catalog")
WfO24e http://blog.numino.net/
set tblnam=server.CreateObject("ADOX.Table")
18wW0T http://blog.numino.net/
a0zVXj http://blog.numino.net/
cn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\网站制作\asp操作mdb\db\test.mdb"
b5Cnm8 http://blog.numino.net/
Set cat.ActiveConnection = cn
BUaqxN http://blog.numino.net/
tblnam.Name = "Test"
X5oe0r http://blog.numino.net/
clx.ParentCatalog = cat
mF5zQ2 http://blog.numino.net/
kFEI7C http://blog.numino.net/
clx.Type = 3
7d2Es5 http://blog.numino.net/
clx.Name = "Id"
GloUF9 http://blog.numino.net/
clx.Properties("AutoIncrement") = true
Su1nFB http://blog.numino.net/
tblnam.Columns.Append clx
Y7wuVh http://blog.numino.net/
tblnam.Columns.Append "DataField",130,20
2b5LPt http://blog.numino.net/
cat.Tables.Append tblnam
gP99gv http://blog.numino.net/
Set clx = Nothing
kXuqkv http://blog.numino.net/
Set cat = Nothing
xm0pl1 http://blog.numino.net/
cn.Close
Tw5s4l http://blog.numino.net/
Set cn = Nothing
RC20F8 http://blog.numino.net/
End Sub
gaBaDg http://blog.numino.net/
call GenAutoIncrementFld
CNnU0i http://blog.numino.net/
===================================
ZVM26i http://blog.numino.net/
字段类型对应数值
i0my8n http://blog.numino.net/
''---- DataTypeEnum Values ----
dkDg64 http://blog.numino.net/
Const adEmpty = 0
20G1ux http://blog.numino.net/
Const adTinyInt = 16
20ivgn http://blog.numino.net/
Const adSmallInt = 2
qNqP5U http://blog.numino.net/
Const adInteger = 3
xzk4DZ http://blog.numino.net/
Const adBigInt = 20
LDSwuG http://blog.numino.net/
Const adUnsignedTinyInt = 17
oE8327 http://blog.numino.net/
Const adUnsignedSmallInt = 18
gPAOBe http://blog.numino.net/
Const adUnsignedInt = 19
hrPon1 http://blog.numino.net/
Const adUnsignedBigInt = 21
Gw7Ekd http://blog.numino.net/
Const adSingle = 4
Kr7k05 http://blog.numino.net/
Const adDouble = 5
5T1a7W http://blog.numino.net/
Const adCurrency = 6
04s6Tp http://blog.numino.net/
Const adDecimal = 14
1lVI5S http://blog.numino.net/
Const adNumeric = 131
27qP2e http://blog.numino.net/
Const adBoolean = 11
gRdw3Y http://blog.numino.net/
Const adError = 10
762c06 http://blog.numino.net/
Const adUserDefined = 132
bbSUfA http://blog.numino.net/
Const adVariant = 12
Aathe1 http://blog.numino.net/
Const adIDispatch = 9
5l3svt http://blog.numino.net/
Const adIUnknown = 13
JTAIkR http://blog.numino.net/
Const adGUID = 72
71dHMh http://blog.numino.net/
Const adDate = 7
uA81bN http://blog.numino.net/
Const adDBDate = 133
sifVPy http://blog.numino.net/
Const adDBTime = 134
4y7Z8b http://blog.numino.net/
Const adDBTimeStamp = 135
g0fE6k http://blog.numino.net/
Const adBSTR = 8
e5BKsz http://blog.numino.net/
Const adChar = 129
tV1h87 http://blog.numino.net/
Const adVarChar = 200
pa2pTy http://blog.numino.net/
Const adLongVarChar = 201
MK31Ct http://blog.numino.net/
Const adWChar = 130
grrjKC http://blog.numino.net/
Const adVarWChar = 202
e80sTw http://blog.numino.net/
Const adLongVarWChar = 203
9XhKBj http://blog.numino.net/
Const adBinary = 128
Sw7tI6 http://blog.numino.net/
Const adVarBinary = 204
tFVX4i http://blog.numino.net/
Const adLongVarBinary = 205
dvJEz2 http://blog.numino.net/
Const adChapter = 136
SU092x http://blog.numino.net/
Const adFileTime = 64
0AbPIs http://blog.numino.net/
Const adPropVariant = 138
ur8p7m http://blog.numino.net/
Const adVarNumeric = 139
F2pG6w http://blog.numino.net/
Const adArray = &H2000
|
|