Question

    declare @tempTable table
(
TableSchema nvarchar(256),
TableName nvarchar(256),
ColumnName sysname,
columnDisplayName nvarchar(500),
ColumnType nvarchar(256),
NotNullCnt bigint
);
declare @TableBU table
(
ColumnName1 sysname,
BU nvarchar(500),
CountBU bigint
);
declare @sql nvarchar(4000);
declare @sql1 nvarchar(4000);
declare @tableSchema nvarchar(256);
declare @tableName nvarchar(256);
declare @ColumnType nvarchar(256);
declare @columnName sysname;
declare @columnDisplayName nvarchar(500);
declare @cnt bigint;
declare @calcul bigint;
declare @BU nvarchar(1000);
declare @varraible nvarchar(1000);
declare columnCursor cursor for
select TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, (SELECT  
       LocalizedLabelView_2.Label AS AttributeDisplayName
FROM    LocalizedLabelView AS LocalizedLabelView_2 INNER JOIN
       AttributeView ON LocalizedLabelView_2.ObjectId = AttributeView.AttributeId RIGHT OUTER JOIN
       EntityView INNER JOIN 
       LocalizedLabelView AS LocalizedLabelView_1 ON EntityView.EntityId = LocalizedLabelView_1.ObjectId ON
       AttributeView.EntityId = EntityView.EntityId
WHERE  ( LocalizedLabelView_1.ObjectColumnName = 'LocalizedName'
AND LocalizedLabelView_2.ObjectColumnName = 'DisplayName'
AND LocalizedLabelView_1.LanguageId = '1033'
AND LocalizedLabelView_2.LanguageId = '1033'
AND AttributeView.Name=COLUMN_NAME
AND EntityView.Name IN ('account'))) as COLUMN_DisplayName ,DATA_TYPE from INFORMATION_SCHEMA.COLUMNS
where IS_NULLABLE = 'YES' and TABLE_NAME='Account';
open columnCursor;
fetch next from columnCursor into @tableSchema, @tableName, @columnName,@columnDisplayName, @ColumnType;
while @@FETCH_STATUS = 0
begin
SET @sql1='declare columnCursor2 CURSOR  for 
select SU.BusinessUnitIdName as BU,COUNT(*) as Number  from Account as ACT inner join SystemUser as SU on SU.SystemUserId=ACT.OwnerId 
where ['ACT.'+'+@columnName+'] is not null group by SU.BusinessUnitIdName';
EXECUTE sp_executesql @sql1;
open columnCursor2;
fetch next from columnCursor2 into @BU,@calcul;
while @@FETCH_STATUS = 0
begin
insert into @TableBU select @columnName,@BU,@calcul;
fetch next from columnCursor2 into @BU,@calcul;
end
close columnCursor2;
deallocate columnCursor2;
set @sql = 'select @cnt = COUNT(*) from [' + @tableSchema + '].[' + @tableName +
'] where [' + @columnName + '] is not null';
exec sp_executesql @sql, N'@cnt bigint output', @cnt = @cnt output;
insert into @tempTable select @tableSchema, @tableName, @columnName,@columnDisplayName, @ColumnType, @cnt;
fetch next from columnCursor into @tableSchema, @tableName, @columnName,@columnDisplayName,@ColumnType;
end;
close columnCursor;
deallocate columnCursor;
select TT.columnDisplayName as Nom_Business,TT.ColumnName as Nom_Technique,TT.ColumnType as Type, TT.NotNullCnt as Nombre_Renseigné,
(select COUNT(*)  from  Account)as Nombre_Totale,TB.BU,TB.CountBU from @tempTable as TT inner join @TableBU as TB on  TT.ColumnName =TB.ColumnName1 
where columnDisplayName is not null  group by TB.BU,TT.columnDisplayName , TT.ColumnName ,TB.ColumnName1,TT.ColumnType,TT.NotNullCnt,TB.CountBU
order by columnDisplayName;

运行此查询后，我收到错误：

Ambiguous column name 'CreatedByDsc'.    
A cursor with the name 'columnCursor2' does not exist.

我认为此错误与包含Account表列的变量@columnName有关。变量@columnName必须被视为Account表中的列。

提前感谢您的帮助。

Answer 1

1）@ sql1 as NVARCHAR
2）删除插入中的@columnname

declare @TableBU table 
  (ColumnName1 varchar(30), BU nvarchar(500), CountBU bigint );     

declare @sql1 as nvarchar(max)

set @columnName = 'field1'

    SET @sql1=N'declare columnCursor2 CURSOR  for 
    select SU.BusinessUnitIdName as BU,COUNT(*) as Number  from Account as ACT inner join SystemUser as SU on SU.SystemUserId=ACT.OwnerId 
    where ' + @columnName + ' is not null group by SU.BusinessUnitIdName'; 

    EXECUTE sp_executesql @sql1;

    open columnCursor2 

    fetch next from columnCursor2
     into @BU,@calcul

    while @@FETCH_STATUS = 0
    begin

    insert into @TableBU 
    select @BU,@calcul

    fetch next from columnCursor2 
    into @columnName,@BU,@calcul

    end

    close columnCursor2;
    deallocate columnCursor2;

如何解决where子句中的模糊列？

1 个答案: