Dynamic T-SQL stored procedure to insert in differents tables

Question

What is the best way to achieve this

INSERT INTO @TableName (@ColumnNames)
    EXEC sp_executesql @SQLResult;

Where @TableName,

Answer 1

First of all I appreciate all your comments. And I agree that SQL dynamic is a pain to debug (Thanks God, management studio has this possibility). And, of course there are hundreds of different solutions

I solved it in this way finally, more or less I try to explain why this solution of SQL dynamic. The client uses xlsx spreadsheets to enter certain data, so I read the spreadsheets and I insert the (data depends on the spreadsheet to insert into the proper table). Later the data in the tables are exported to XML to send a third party sofware.

SET @SEL = N'';
DECLARE sel_cursor CURSOR
FOR (SELECT  sc.name as field
      FROM sys.objects so INNER JOIN sys.columns sc ON so.[object_id]=sc.[object_id]
      WHERE so.name= @TableName and sc.name not in ('InitDate', 'EndDate', 'Version', 'Status'));

SET @SEL = ''; set @i = 0;
OPEN sel_cursor
FETCH NEXT FROM sel_cursor INTO @field
WHILE @@FETCH_STATUS = 0
BEGIN
    set @sel = @sel + ', '+ @field 
    set @i   = 1;
    FETCH NEXT FROM sel_cursor INTO @field
END
CLOSE sel_cursor;
DEALLOCATE sel_cursor;


SET @SQL = N''
SET @SQL = @SQL + N'SELECT * INTO XLImport FROM OPENROWSET'
SET @SQL = @SQL + N'('
SET @SQL = @SQL + N'''Microsoft.ACE.OLEDB.12.0'''+','
SET @SQL = @SQL + N'''Excel 12.0 Xml; HDR=YES;'
SET @SQL = @SQL + N'Database='+@file +''''+ ','
SET @SQL = @SQL + N'''select * from ['+ @SheetName + '$]'''+');'

EXEC sp_executesql @SQL

SET @SQL = N'';
SET @SQL = @SQL + N'
SELECT '+''''+CAST(@initDate AS VARCHAR(10))+'''' +', '+ ''''+CAST(@endDate AS VARCHAR(10))+'''' 
      + ', '+ CAST(@version AS VARCHAR(2)) +', ' +''''+@status+''''
      + @SEL 
 +'    FROM DBO.XLImport '


DECLARE cols_cursor CURSOR
   FOR (Select COLUMN_NAME From INFORMATION_SCHEMA.COLUMNS where table_name = @tableName);
SET @SEL = ''; set @i = 0;
OPEN cols_cursor
FETCH NEXT FROM cols_cursor INTO @field
WHILE @@FETCH_STATUS = 0
BEGIN
   set @sel = @sel + @field + ', '
   set @i   = 1;
   FETCH NEXT FROM cols_cursor INTO @field
END
CLOSE cols_cursor;
DEALLOCATE cols_cursor;

SET @SEL = LEFT(@SEL, LEN(@SEL) - 1) -- remove last ,


SET @SQL = N''
SET @SQL = @SQL + N'SELECT * INTO XLImport FROM OPENROWSET'
SET @SQL = @SQL + N'('
SET @SQL = @SQL + N'''Microsoft.ACE.OLEDB.12.0'''+','
SET @SQL = @SQL + N'''Excel 12.0 Xml; HDR=YES;'
SET @SQL = @SQL + N'Database='+@file +''''+ ','
SET @SQL = @SQL + N'''select * from ['+ @SheetName + '$]'''+');'

EXEC sp_executesql @SQL

SET @SQLString =
N'INSERT INTO '+ @TableName + '('+ @SEL +') ' + @SQL;

EXEC sp_executesql @SQLString