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Developer-C 11.1
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CREATE TABLE T ([欄位1] varchar(4), [欄位2] varchar(4), [欄位3] varchar(4)) ; INSERT INTO T ([欄位1], [欄位2], [欄位3]) VALUES ('20', NULL, '21'), (NULL, NULL, NULL), ('12', '13', '15') ;
3 rows affected
--設定 declare @table_name nvarchar(100) = 'T'; --填寫要查詢的表格名稱 declare @columns table (column_name nvarchar(200)); --保存表格欄位資料 insert into @columns select T1.COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS T1 with (nolock) left join INFORMATION_SCHEMA.TABLES T2 with (nolock) on T1.TABLE_NAME = T2.TABLE_NAME where 1 =1 and Table_Type = 'BASE TABLE' and T2.TABLE_NAME = @table_name; declare @sql nvarchar(max) = 'select '; select @sql = @sql + column_name + ',' from @columns select @sql = @sql + ' case when ' + column_name + ' is null then 1 else 0 end +' from @columns --執行 set @sql = LEFT(@sql, Len(@sql)-1) + N' as 計算結果' + ' from ' + @table_name; exec sp_executesql @sql
欄位1
欄位2
欄位3
計算結果
20
null
21
1
null
null
null
3
12
13
15
0