有没有办法用更少的行编写以下代码?执行这样一个简单的查询似乎有很多代码。没有LINQ因为我正在使用VS2005。 VB或C#中的答案都是可以接受的。
Using cmd As DbCommand = oDB.CreateCommand()
cmd.CommandText = "SELECT * FROM [Table1] WHERE [Date] BETWEEN @Date1 AND @Date2"
cmd.CommandTimeout = 30
cmd.CommandType = CommandType.Text
cmd.Connection = oDB
Dim param As DbParameter
param = cmd.CreateParameter()
param.Direction = ParameterDirection.Input
param.DbType = DbType.Date
param.ParameterName = "@Date1"
param.Value = Now().Date
cmd.Parameters.Add(param)
param = cmd.CreateParameter()
param.Direction = ParameterDirection.Input
param.DbType = DbType.Date
param.ParameterName = "@Date2"
param.Value = Now().Date.AddDays(intDaysAhead)
cmd.Parameters.Add(param)
End Using
Dim reader As DbDataReader = cmd.ExecuteReader()
答案 0 :(得分:2)
这些可能是你能得到的最少的一行:
Using con = New SqlConnection("Connectionstring")
Using cmd = New SqlCommand("SELECT * FROM [Table1] WHERE [Date] BETWEEN @Date1 AND @Date2", con)
cmd.CommandTimeout = 30
cmd.Parameters.AddWithValue("@Date1", Date.Today)
cmd.Parameters.AddWithValue("@Date2", Date.Today.AddDays(intDaysAhead))
con.Open()
Using reader = cmd.ExecuteReader()
End Using
End Using
End Using
(假设SqlClient
但与其他数据提供者相似)