SQL Server单引号两种处理技巧(2)

Dim cnn1 As ADODB.Connection '连接

Dim mycommand As ADODB.Command '命令

Dim rstByQuery As ADODB.Recordset '结果集

Dim strCnn As String '连接字符串

Private Sub Form_Load()

Set cnn1 = New ADODB.Connection '生成一个连接

strCnn = "driver={SQL Server};" & _

"server=ZYX_pc;uid=sa;pwd=PCDC;database=pubs" '

没有系统数据源使用连接字符串

'strCnn = "DSN=mydsn;UID=sa;PWD=;"

'DATABASE=pubs;Driver={SQL Server};SERVER=gzl_pc" '

如果系统数据源MYDSN指向PUBS数据库，也可以这样用

cnn1.Open strCnn, , , 0 '打开连接

End Sub

Private Sub Command1_Click() '演示字符处理

Dim i As Integer

Dim j As Integer

Set parm = New ADODB.Parameter

Set mycommand = New ADODB.Command

Dim str As String

str = Combo1.Text

str = ProcessStr (str)

mycommand.ActiveConnection = cnn1 '

指定该command 的当前活动连接

mycommand.CommandText = " select * from

employee where fname = '" & str & "'"

mycommand.CommandType = adCmdText '表明command 类型

Set rstByQuery = New ADODB.Recordset

Set rstByQuery = mycommand.Execute()

i = 0

Do While Not rstByQuery.EOF

i = i + 1 ' i 中保存记录个数

rstByQuery.MoveNext

Loop

MSFlexGrid1.Rows = i + 1 '动态设置MSFlexGrid的行和列

MSFlexGrid1.Cols = rstByQuery.Fields.count + 1

MSFlexGrid1.Row = 0

For i = 0 To rstByQuery.Fields.count - 1

MSFlexGrid1.Col = i + 1

MSFlexGrid1.Text = rstByQuery.Fields.Item(i).Name

Next '设置第一行的标题，用域名填充

i = 0

'Set rstByQuery = mycommand.Execute()

rstByQuery.Requery

Do While Not rstByQuery.EOF

i = i + 1

MSFlexGrid1.Row = i '确定行

For j = 0 To rstByQuery.Fields.count - 1

MSFlexGrid1.Col = j + 1

MSFlexGrid1.Text = rstByQuery(j) '添充所有的列

Next

rstByQuery.MoveNext

Loop '这个循环用来填充MSFlexGrid的内容

End Sub

Private Sub Command2_Click()'参数方法

Dim i As Integer

Dim j As Integer

Set parm = New ADODB.Parameter

Set mycommand = New ADODB.Command

' parm_jobid.Name = "name1" this line can be ommited

parm.Type = adChar '参数类型

parm.Size = 10 '参数长度

parm.Direction = adParamInput '参数方向，输入或输出

parm.Value = Combo1.Text '参数的值

mycommand.Parameters.Append parm '加入参数

mycommand.ActiveConnection = cnn1 '

指定该command 的当前活动连接

mycommand.CommandText = " select *

from employee where fname =? "

mycommand.CommandType = adCmdText '表明command 类型

Set rstByQuery = New ADODB.Recordset

Set rstByQuery = mycommand.Execute()

i = 0

Do While Not rstByQuery.EOF

i = i + 1 ' i 中保存记录个数

rstByQuery.MoveNext

Loop

MSFlexGrid1.Rows = i + 1 '动态设置MSFlexGrid的行和列

MSFlexGrid1.Cols = rstByQuery.Fields.count + 1

MSFlexGrid1.Row = 0

For i = 0 To rstByQuery.Fields.count - 1

MSFlexGrid1.Col = i + 1

MSFlexGrid1.Text = rstByQuery.Fields.Item(i).Name

Next '设置第一行的标题，用域名填充

i = 0

rstByQuery.Requery

Do While Not rstByQuery.EOF

i = i + 1

MSFlexGrid1.Row = i '确定行

For j = 0 To rstByQuery.Fields.count - 1

MSFlexGrid1.Col = j + 1

MSFlexGrid1.Text = rstByQuery(j) '添充所有的列

Next

rstByQuery.MoveNext

Loop '这个循环用来填充MSFlexGrid的内容

End Sub