问题描述
在SQL查询中应用并集时，可能会要求并集查询中的每个字段必须具有相同的详细信息。例如字段数，各个字段的数据类型。
您的错误表示价值排序规则有所不同。您必须对两个查询中的列进行相同的排序规则。
下面的脚本更改可以解决您的问题。
IF @counter = @HeaderCount
BEGIN
SET @sql = @sql + ''''+@Qualifier+'''+ cast(min(case ordinal_position when '+cast(@counter as varchar)+' then column_name Collate latin1_General_CI_AI end) as varchar) +'''+@Qualifier+''' as ['+@colname+'] '
END
ELSE
BEGIN
SET @sql = @sql + ''''+@Qualifier+'''+cast(min(case ordinal_position when '+cast(@counter as varchar)+' then column_name Collate latin1_General_CI_AI end) as varchar) +'''+@Qualifier+''' as ['+@colname+'], '
END
解决方法
我的存储过程在执行时抛出错误：
错误：无法创建分隔的文本文件（原因：无法进行从varchar值到varchar的隐式转换，因为在UNION ALL运算符中，由于“
Latin1_General_CI_AI”和“
Latin1_General_100_CI_AS_KS_SC”之间的排序规则冲突，导致无法解析该值的排序规则。）
我的存储过程基本上会创建一个带分隔符的文件，并将表或视图与文件名一起作为输入。
我知道这是排序规则问题，但是我尝试在查询中放置Collate Database_Default和Collate
Catalog_Default，但是该错误无法解决。
有人能指导我做错什么吗？
ALTER PROCEDURE Usp_Delfile
(@Source VARCHAR(MAX),@DestinationFile VARCHAR(MAX),@ColumnList VARCHAR(MAX) = '',@Delimiter VARCHAR(256) = ',',@Qualifier VARCHAR(256) = '"',@Criteria VARCHAR(MAX) = '',@FirstRow INT = 0,@LastRow INT = 0,@Username VARCHAR(256) = '',@Password VARCHAR(256) = '',@Server VARCHAR(256) = '',@SourceType VARCHAR(100) = '',@SourceTableName VARCHAR(128) = '',@OtherConnection VARCHAR(MAX) = '')
AS
BEGIN
-- Declare variable
DECLARE @HeaderCount INT
DECLARE @Header VARCHAR(MAX)
DECLARE @SQL VARCHAR(MAX)
DECLARE @COLNAME VARCHAR(MAX)
DECLARE @SUBSQL VARCHAR(MAX)
DECLARE @TEMPVIEWNAME VARCHAR(MAX)
DECLARE @counter INT
-- Otherconnection is not used but kept for future development
SET @OtherConnection = ''
-- Set the name of the temporary view
SET @TEMPVIEWNAME = 'uTEMPVIEW'+convert(varchar(max),newid())
BEGIN TRY
-- Try to figure out the source type in case one is not given and it appears something other than SQL may be given
BEGIN TRY
IF (charindex('\',@SOURCE) > 0 AND charindex('.',reverse(@SOURCE)) = 4 AND @SourceType='')
BEGIN
SET @SourceType = SUBSTRING(UPPER(@SOURCE),LEN(@SOURCE)-2,3)
END
ELSE
SET @SourceType = 'SQL'
end try
begin catch
-- If an error occurs during this time,ignore it and assume SQL source type
SET @SourceType = 'SQL'
end catch
IF (UPPER(@SourceType) <> 'SQL')
BEGIN
IF (@OtherConnection <> '')
-- This will be used in the future but disabled for now from previous set statement (I left this in here because I have a horrible memory!)
exec ('create view ['+@TEMPVIEWNAME+'-other] as (select * from OpenRowset('+@OtherConnection+'))')
ELSE
BEGIN
-- If the source is a delimited file,create a view to the file
DECLARE @filepath varchar(256)
DECLARE @filename varchar(256)
DECLARE @OtherViewSQL varchar(max)
-- Get the file path and filename
select @filepath=reverse(substring(reverse(@Source),charindex('\',reverse(@Source))+1,len(@Source) - charindex('\',reverse(@Source)) ))
select @filename=reverse(substring(reverse(@Source),reverse(@Source)) ))
-- Create view to the file using its connector
If(UPPER(@SourceType) = 'DELIMITED' OR UPPER(@SourceType) = 'CSV' OR Upper(@SourceType) = 'TEXT' OR Upper(@SourceType) = 'TXT')
exec('create view ['+@TEMPVIEWNAME+'-other] as (select * from OpenRowset(''MSDASQL'',''Driver={Microsoft Text Driver (*.txt; *.csv)};DefaultDir='+@filepath+';'',''select * from ['+@filename+']''))')
else if(UPPER(@SourceType) = 'DBF' OR UPPER(@SourceType) = 'DBASE' OR UPPER(@SourceType) = 'DBASE3' OR UPPER(@SourceType) = 'DBASEIII' OR UPPER(@SourceType) = 'DBASE 3' OR UPPER(@SourceType) = 'DBASE III' OR UPPER(@SourceType) = 'FOXPRO')
exec('create view ['+@TEMPVIEWNAME+'-other] as (select * from OpenRowset(''MSDASQL'',''Driver={Microsoft dBase Driver (*.dbf)};DBQ='+@filepath+';'',''select * from ['+@filename+']''))')
else IF(UPPER(@SourceType) = 'ACCESS' OR UPPER(@SourceType) = 'MDB')
exec('create view ['+@TEMPVIEWNAME+'-other] as (select * from OpenRowset(''MICROSOFT.JET.OLEDB.4.0'','''+@filepath+'\'+@filename+''' ;;,['+@SourceTableName+']))')
else IF(UPPER(@SourceType) = 'EXCEL' OR UPPER(@SourceType) = 'XLS')
exec('create view ['+@TEMPVIEWNAME+'-other] as (select * from OpenRowset(''MICROSOFT.JET.OLEDB.4.0'',''Excel 8.0;DATABASE='+@filepath+'\'+@filename+''',''select * from ['+@SourceTableName+'$]''))')
END
-- Set the source table to the new view
SET @Source = @TEMPVIEWNAME+'-other'
END
ELSE
SET @SourceTableName = @Source
-- Check to see if columnlist is provided
IF (@ColumnList <> '')
BEGIN
-- Get header count from columnlist
SELECT @HeaderCount = ((LEN(RTRIM(LTRIM(@ColumnList))) - LEN(REPLACE(RTRIM(LTRIM(@ColumnList)),'')))+1)
-- Build delimited file header row
SELECT @Header = COALESCE(@Header + ','') +
CASE WHEN @Qualifier = '' THEN ' '''+@Qualifier+'''+CASE when isnumeric(['+column_name+']) = 1 AND
case when exists(select ordinal_position from
INFORMATION_SCHEMA.COLUMNS where Upper(table_name) = '''+Upper((REPLACE(REPLACE(@Source,'[',''),']','')))+'''
and (UPPER(data_type) <> ''VARCHAR'' OR UPPER(data_type) <> ''NVARCHAR'' OR UPPER(data_type) <> ''CHAR'' OR UPPER(data_type) <>''NCHAR'')
and Upper(column_name) ='''+UPPER(column_name) COLLATE CATALOG_DEFAULT +''') THEN -1 ELSE 0
END = 0
THEN cast(cast(['+column_name+'] as decimal(38,38)) as varchar(max)) ELSE cast(CASE when ['+column_name+'] = '''' THEN NULL ELSE ['+column_name+'] END as varchar(max)) END+'''+@Qualifier+''' as ['+column_name+']'
ELSE ' '''+@Qualifier+'''+ISNULL(CASE when isnumeric(['+column_name+']) = 1 AND
case when exists(select ordinal_position from
INFORMATION_SCHEMA.COLUMNS where Upper(table_name) = '''+Upper((REPLACE(REPLACE(@Source,'')))+'''
and (UPPER(data_type) <> ''VARCHAR'' OR UPPER(data_type) <> ''NVARCHAR'' OR UPPER(data_type) <> ''CHAR'' OR UPPER(data_type) <>''NCHAR'')
and Upper(column_name)='''+UPPER(column_name)+''') THEN -1 ELSE 0
END = 0
THEN cast(cast(['+column_name+'] as decimal(38,38)) as varchar(max)) ELSE cast(CASE when ['+column_name+'] = '''' THEN NULL ELSE ['+column_name+'] END as varchar(max)) END,'''')+'''+@Qualifier+''' as ['+column_name+']'
END
FROM ( SELECT column_name,rank() OVER (ORDER BY ordinal_position) as rank
FROM INFORMATION_SCHEMA.columns
where UPPER(table_name) = Upper((REPLACE(REPLACE(@Source,''))) AND charindex(','+column_name+',RTRIM(LTRIM(','+@ColumnList+','))) > 0
) t ORDER BY t.rank ASC
-- Initialize main view query
SET @SQL = 'SELECT '
-- Build main view query
set @counter = 0
while @counter < @HeaderCount
begin
-- Increase counter
set @counter = @counter + 1
-- Get column name
SELECT TOP 1 @colname = column_name FROM ( SELECT TOP (@counter) column_name,rank() OVER (ORDER BY ordinal_position) as rank
FROM INFORMATION_SCHEMA.columns
where UPPER(table_name) = ((Upper((REPLACE(REPLACE(@Source,''))))) AND charindex(','))) > 0
ORDER BY rank ASC ) as t ORDER BY rank DESC
-- Add to main view query
IF @counter = @HeaderCount
BEGIN
SET @SQL = @SQL + ''''+@Qualifier+'''+ SUBSTRING(RTRIM(LTRIM('''+@ColumnList+''')),charindex('''+@colname+''',RTRIM(LTRIM('''+@ColumnList+'''))),LEN('''+@colname+'''))+'''+@Qualifier+''' as ['+@colname+'] '
END
ELSE
BEGIN
SET @SQL = @SQL + ''''+@Qualifier+'''+ SUBSTRING(RTRIM(LTRIM('''+@ColumnList+''')),LEN('''+@colname+'''))+'''+@Qualifier+''' as ['+@colname+@Delimiter+'],'
END
end
END
ELSE
BEGIN
-- Get header count from columnlist
SELECT @HeaderCount = count(column_name)
FROM INFORMATION_SCHEMA.columns
where UPPER(table_name) = Upper((REPLACE(REPLACE(@Source,'')))
-- Build delimited file header row
SELECT @Header = COALESCE(@Header + ','') +
CASE WHEN @Qualifier = '' THEN ' '''+@Qualifier+'''+CASE when isnumeric(['+column_name+']) = 1 AND
case when exists(select ordinal_position from
INFORMATION_SCHEMA.COLUMNS where Upper(table_name) COLLATE CATALOG_DEFAULT = '''+Upper((REPLACE(REPLACE(@Source,38)) as varchar(max)) ELSE cast(CASE when ['+column_name+'] = '''' THEN NULL ELSE ['+column_name+'] END as varchar(max)) END+'''+@Qualifier+''' as ['+column_name+']'
ELSE ' '''+@Qualifier+'''+ISNULL(CASE when isnumeric(['+column_name+']) = 1 AND
case when exists(select ordinal_position from
INFORMATION_SCHEMA.COLUMNS where Upper(table_name) = '''+Upper((REPLACE(REPLACE(@Source,38)) as varchar(max)) ELSE cast(CASE when cast(['+column_name +'] as varchar(max)) = '''' THEN NULL ELSE ['+column_name+'] END as varchar(max)) END,'''')+'''+@Qualifier+''' as ['+column_name+']'
END
FROM ( SELECT column_name,'')))
) t ORDER BY t.rank ASC
-- Initialize main view query
SET @SQL = 'SELECT '
-- Build main view query
set @counter = 0
while @counter < @HeaderCount
begin
-- Increase counter
set @counter = @counter + 1
-- Get column name
SELECT TOP 1 @colname = column_name FROM ( SELECT TOP (@counter) column_name,rank() OVER (ORDER BY ordinal_position) as rank
FROM INFORMATION_SCHEMA.columns
where UPPER(table_name) = Upper((REPLACE(REPLACE(@Source,'')))
ORDER BY rank ASC ) as t ORDER BY rank DESC
-- Add to main view query
IF @counter = @HeaderCount
BEGIN
SET @SQL = @SQL + ''''+@Qualifier+'''+ cast(min(case ordinal_position when '+cast(@counter as varchar)+' then column_name end) as varchar) +'''+@Qualifier+''' as ['+@colname+'] '
END
ELSE
BEGIN
SET @SQL = @SQL + ''''+@Qualifier+'''+cast(min(case ordinal_position when '+cast(@counter as varchar)+' then column_name end) as varchar) +'''+@Qualifier+''' as ['+@colname+'],'
END
end
SET @SQL = @SQL + ' from ['+db_name()+'].information_schema.columns where UPPER(table_name) = Upper('''+Upper((REPLACE(REPLACE(@Source,'')))+''') '
END
-- Finish up the main view query
SET @SQL = @SQL + ' union all '
SET @SQL = @SQL + ' select '
SET @SQL = @SQL + @Header + ' FROM ['+db_name()+']..['+Upper((REPLACE(REPLACE(@Source,'')))+']'
-- Add criteria if exists
IF (@Criteria <> '')
BEGIN
SET @SQL = @SQL + ' WHERE '+@Criteria+' '
END
-- Create temporary view
exec('create view ['+@TEMPVIEWNAME+'] as ('+@SQL+')')
-- Execute bcp on temporary view
DECLARE @bcpcmd varchar(8000)
SET @bcpcmd = 'bcp ["'+db_name()+']..['+@TEMPVIEWNAME+']" out "'+@DestinationFile+'" -k -c ACP -t "'+@Delimiter+'"'
-- Add first row and last row arguments to bcp command
IF (@FirstRow > 0)
SET @bcpcmd = @bcpcmd + ' -F '+cast(@FirstRow as varchar)
IF (@LastRow > 0)
SET @bcpcmd = @bcpcmd + ' -L '+cast(@LastRow as varchar)
-- Add server login information
IF (@Username <> '')
BEGIN
SET @bcpcmd = @bcpcmd + ' -U '+@Username
IF (@Password <> '')
SET @bcpcmd = @bcpcmd + ' -P '+@Password
END
ELSE
BEGIN
SET @bcpcmd = @bcpcmd + ' -T '
END
IF (@Server <> '')
SET @bcpcmd = @bcpcmd + ' -S '+@Server
exec master..xp_cmdshell @bcpcmd
-- Drop temporary view
exec('IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'''+@TEMPVIEWNAME+''')) DROP View ['+@TEMPVIEWNAME+']')
exec('IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'''+@TEMPVIEWNAME+'-other'')) DROP VIEW ['+@TEMPVIEWNAME+'-other]')
end try
begin catch
-- show error if one occurs
SELECT 'ERROR: UNABLE TO CREATE DELIMITED TEXT FILE (Reason:' + error_message() + ')'
begin try
-- Drop view if an error occurs
exec('IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'''+@TEMPVIEWNAME+''')) DROP View ['+@TEMPVIEWNAME+']')
exec('IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'''+@TEMPVIEWNAME+'-other'')) DROP VIEW ['+@TEMPVIEWNAME+'-other]')
end try
begin catch
end catch
end catch
END