我得到了net的帮助，它指示如何针对多个关键字搜索sql server表的多个字段。
链接网址为http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=103033 并且它们的脚本用于针对多个关键字搜索sql server表的多个字段，如下所示。
select * from YourTable
WHERE PATINDEX('%text1%',COALESCE(field1,'') + '|' + COALESCE(field2,'') + '|'+ COALESCE(field3,'')+ '|' + COALESCE(field4,'')+ '|' + COALESCE(field5,'')+ '|' + COALESCE(field6,'')+ '|' + COALESCE(field7,'') + '|'+ COALESCE(field8,'') + '|'+ COALESCE(field9,''))>0
AND
PATINDEX('%text2%',COALESCE(field1,'') + '|' + COALESCE(field2,'') + '|'+ COALESCE(field3,'')+ '|' + COALESCE(field4,'')+ '|' + COALESCE(field5,'')+ '|' + COALESCE(field6,'')+ '|' + COALESCE(field7,'') + '|'+ COALESCE(field8,'') + '|'+ COALESCE(field9,''))>0
我不确定上述脚本是否有效。
在我们的例子中，我必须动态地在字符串中开发上述查询。这是我的脚本，它给出了编译错误，我无法弄清楚为什么会出现错误。 这是我的剧本......请看一下。
ALTER PROC usp_SearchData
(
@FilterXML as XML
)
AS
BEGIN
DECLARE @SQL VARCHAR(MAX)
DECLARE @Main_minID int, @Main_maxID int
DECLARE @Sub_minID int, @Sub_maxID int
DECLARE @Main_Col VARCHAR(MAX)
DECLARE @Sub_Col VARCHAR(MAX)
CREATE TABLE #SearchFilter
(
ID integer identity,
FilterName varchar(max)
)
INSERT INTO #SearchFilter
SELECT
x.y.value('text()[1]', 'varchar(max)')
FROM @FilterXML.nodes('root/row') x(y)
SET @SQL=''
SET @SQL='SELECT EmailID,[Name],PhoneNo,CurrentLocation as [Current Location]'
SET @SQL=@SQL+',PreferredWorkLocation as [Preferred Work Location]'
SET @SQL=@SQL+',JobTypeName as [Role Appling For],AdvertType as [Aware From] '
SET @SQL=@SQL+'from vwSearchData WHERE '
SELECT @Main_minID = MIN(ID), @Main_maxID= MAX(ID)
FROM #SearchFilter
WHILE @Main_minID <= @Main_maxID
BEGIN
SELECT @Main_Col = FilterName FROM #SearchFilter WHERE ID = @Main_minID
BEGIN
SET @SQL=@SQL+'PATINDEX('''% + @Main_Col + '%'''
SELECT @Sub_minID = MIN(ID), @Sub_maxID= MAX(ID) FROM SearchColumns
WHILE @Sub_minID <= @Sub_maxID
BEGIN
SELECT @Sub_Col = FilterName FROM SearchColumns WHERE ID = @Sub_minID
SET @SQL=@SQL+',COALESCE('+@Sub_Col+','''')| '
SET @Sub_minID = @Sub_minID + 1
END
SET @SQL=SUBSTRING(@SQL, 1, LEN(@SQL)-2) + ')>0 AND '
END
SET @SQL=SUBSTRING(@SQL, 1, LEN(@SQL)-5)
SET @Main_minID = @Main_minID + 1
END
IF OBJECT_ID('tempdb..#SearchFilter') IS NOT NULL
BEGIN
DROP TABLE #SearchFilter
END
PRINT @SQL
END
1）告诉我为什么我会收到错误 2）如何在字符串中动态开发整个PATINDEX语句。 3）只是告诉上面的PATINDEX状态确实适用于多个字段搜索多个关键字
请给我最好的指导，以实现我的工作。感谢
USE [MyDB]
GO
/****** Object: StoredProcedure [dbo].[searchTable] Script Date: 03/05/2013 11:17:56 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--ALTER proc [dbo].[searchTable]
--AS
BEGIN
--DECLARE @FilterXML as XML
DECLARE @SQL VARCHAR(MAX)
DECLARE @Main_minID int, @Main_maxID int
DECLARE @Sub_minID int, @Sub_maxID int
DECLARE @Main_Col VARCHAR(MAX)
DECLARE @Sub_Col VARCHAR(MAX)
CREATE TABLE #SearchFilter
(
ID integer identity,
FilterName varchar(max)
)
DECLARE @FilterXML XML
SET @FilterXML = '<root>
<row>France</row>
<row>CSR</row>
<row>technician</row>
</root>'
INSERT INTO #SearchFilter
SELECT
x.y.value('text()[1]', 'varchar(max)')
FROM @FilterXML.nodes('root/row') x(y)
SET @SQL=''
--SET @SQL='SELECT EmailID,[Name],PhoneNo,CurrentLocation as [Current Location]'
--SET @SQL=@SQL+',PreferredWorkLocation as [Preferred Work Location]'
--SET @SQL=@SQL+',JobTypeName as [Role Appling For],AdvertType as [Aware From] '
--SET @SQL=@SQL+'from vwSearchData WHERE '
SELECT @Main_minID = MIN(ID), @Main_maxID= MAX(ID)
FROM #SearchFilter
WHILE @Main_minID <= @Main_maxID
BEGIN
SELECT @Main_Col = FilterName FROM #SearchFilter WHERE ID = @Main_minID
BEGIN
SET @SQL=@SQL+'PATINDEX(''%' + @Main_Col + '%'''
--PATINDEX('%France%'PATINDEX('%CSR%'PATINDEX('%technician%'
SELECT @Sub_minID = MIN(ID), @Sub_maxID= MAX(ID) FROM SearchColumns
WHILE @Sub_minID <= @Sub_maxID
BEGIN
SELECT @Sub_Col = FilterName FROM SearchColumns WHERE ID = @Sub_minID
SET @SQL=@SQL+',COALESCE('+@Sub_Col+','''')| '
SET @Sub_minID = @Sub_minID + 1
END
SET @SQL=SUBSTRING(@SQL, 1, LEN(@SQL)-1) + ')>0 AND ' + CHAR(13);
END
SET @Main_minID = @Main_minID + 1
END
SET @SQL=SUBSTRING(@SQL, 1, LEN(@SQL)-5)
IF OBJECT_ID('tempdb..#SearchFilter') IS NOT NULL
BEGIN
DROP TABLE #SearchFilter
END
PRINT @SQL
END
ALTER PROC [dbo].[SearchCVData]
(
@FilterXML as XML
)
AS
BEGIN
DECLARE @SQL VARCHAR(MAX)
DECLARE @Main_minID int, @Main_maxID int
DECLARE @Sub_minID int, @Sub_maxID int
DECLARE @Main_Col VARCHAR(MAX)
DECLARE @Sub_Col VARCHAR(MAX)
CREATE TABLE #SearchFilter
(
ID integer identity,
FilterName varchar(max)
)
INSERT INTO #SearchFilter
SELECT
x.y.value('text()[1]', 'varchar(max)')
FROM @FilterXML.nodes('Filter/value') x(y)
SET @SQL=''
SET @SQL='SELECT EmailID,[Name],PhoneNo,CurrentLocation as [Current Location]' + CHAR(13);
SET @SQL=@SQL+',PreferredWorkLocation as [Preferred Work Location]' + CHAR(13);
SET @SQL=@SQL+',JobTypeName as [Role Appling For],AdvertType as [Aware From] ' + CHAR(13);
SET @SQL=@SQL+'from vwSearchData WHERE ' + CHAR(13);
SELECT @Main_minID = MIN(ID), @Main_maxID= MAX(ID)
FROM SearchColumns
SET @SQL=@SQL+'('
WHILE @Main_minID <= @Main_maxID
BEGIN
SELECT @Main_Col = FieldName FROM SearchColumns WHERE ID = @Main_minID
BEGIN
SELECT @Sub_minID = MIN(ID), @Sub_maxID= MAX(ID) FROM #SearchFilter
WHILE @Sub_minID <= @Sub_maxID
BEGIN
SELECT @Sub_Col = FilterName FROM #SearchFilter WHERE ID = @Sub_minID
SET @SQL=@SQL+'(' + @Main_Col + ' LIKE ''%'+@Sub_Col+'%'') OR '
SET @Sub_minID = @Sub_minID + 1
END
END
SET @Main_minID = @Main_minID + 1
END
SET @SQL=SUBSTRING(@SQL, 1, LEN(@SQL)-4) + CHAR(13);
SET @SQL=@SQL+')'
IF OBJECT_ID('tempdb..#SearchFilter') IS NOT NULL
BEGIN
DROP TABLE #SearchFilter
END
EXEC(@SQL)
END
C# code
---------
Dictionary<string,string> dParams=new Dictionary<string,string>();
if (txtSearch.Text.Trim() == "")
return;
dParams.Add("@FilterXML",Utility.BuilXML(txtSearch.Text.Trim()));
DataSet ds = DataRetrival.ExecuteSP("SearchCVData", dParams);
if (ds != null)
{
if (ds.Tables.Count > 0)
{
dgList.Invoke((Action)(() => dgList.DataSource = ds.Tables[0]));
SetWidth();
}
}
public static string BuilXML(string strSearch)
{
string strXML="";
if (strSearch.Trim() != "")
{
string[] data = strSearch.Trim().Split(',');
XElement xml = new XElement("Filter");
for (int count = 0; count <= data.Length-1; count++)
{
XElement elm = new XElement("value", data[count]);
xml.Add(elm);
}
strXML = xml.ToString().Replace("\r\n", string.Empty);
}
return strXML;
}
public static Form CenterForm(this Form child, Form parent)
{
child.StartPosition = FormStartPosition.Manual;
child.Location = new Point(child.MdiParent.ClientSize.Width / 2 - child.Width / 2, child.MdiParent.ClientSize.Height / 2 - child.Height / 2);
return child;
}
public static DataSet ExecuteSP(string sprocName, Dictionary<string, string> paramList)
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = sprocName;
cmd.Connection = DataLayer.DataConnection.cnnLocal;
//loop through the dictionary
foreach (string key in paramList.Keys)
{
cmd.Parameters.AddWithValue(key, paramList[key]);
}
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
//release the resource
cmd = null;
da = null;
return ds;
}
SELECT * FROM ADDRESS WHERE
((NAME LIKE 'Bill%') OR (CITY LIKE 'Bill%') OR (COMPANY LIKE 'Bill%'))
AND
((NAME LIKE 'Seattle%') OR (CITY LIKE 'Seattle%') OR (COMPANY LIKE 'Seattle%'))