从 Select 查询创建 table

Question

我有一个查询在 SQL Server 2008 R2 Express 中加入 7 table 总共 852 列。我正在尝试使用该查询的输出创建一个新的 table

尝试使用 INTO，但由于 table 中的某些列具有重复名称，因此无法正常工作

USE VistaBI
SELECT *
INTO NewTable
FROM         dbo.Agente FULL JOIN
                      dbo.Cte ON dbo.Agente.Agente = dbo.Cte.Agente 
                      FULL JOIN
                      dbo.CteEnviarA ON dbo.Agente.Agente = dbo.CteEnviarA.Agente 
                      FULL JOIN
                      dbo.Unidad ON dbo.CteEnviarA.Unidad = dbo.Unidad.Unidad 
                      FULL JOIN
                      dbo.Venta ON dbo.Agente.Agente = dbo.Venta.Agente 
                      FULL JOIN
                      dbo.VentaD ON dbo.Agente.Agente = dbo.VentaD.Agente 
                      FULL JOIN
                      dbo.Art ON dbo.VentaD.Articulo = dbo.Art.Articulo
                      FULL JOIN 
                      dbo.Alm ON dbo.Venta.Almacen = dbo.Alm.Almacen

有没有办法自动创建 table，而不必为 852 列中的每一列键入唯一的名称和数据类型？

Answer 1

select 列名显式而不是使用 *

下面我用两个表举个例子

select 
    a.person_id,
    a.city,
    city.city_id
into 
    mytable 
from 
    table1 a
inner join 
    city on a.city = city.city

所以在你的情况下

SELECT table_name.col1,table_nae.col2..... use explicitly column name in selection
INTO NewTable
FROM         dbo.Agente FULL JOIN
                      dbo.Cte ON dbo.Agente.Agente = dbo.Cte.Agente 
                      FULL JOIN
                      dbo.CteEnviarA ON dbo.Agente.Agente = dbo.CteEnviarA.Agente 
                      FULL JOIN
                      dbo.Unidad ON dbo.CteEnviarA.Unidad = dbo.Unidad.Unidad 
                      FULL JOIN
                      dbo.Venta ON dbo.Agente.Agente = dbo.Venta.Agente 
                      FULL JOIN
                      dbo.VentaD ON dbo.Agente.Agente = dbo.VentaD.Agente 
                      FULL JOIN
                      dbo.Art ON dbo.VentaD.Articulo = dbo.Art.Articulo
                      FULL JOIN 
                      dbo.Alm ON dbo.Venta.Almacen = dbo.Alm.Almacen

Answer 2

您可以先创建一个 table，然后使用动态更改语句添加您需要的列数，例如：

CREATE TABLE MYTABLE 
(
A INT,
B INT
)


DECLARE @I INT = 1, @COLNAME VARCHAR(20),@SQL VARCHAR(MAX)
WHILE (@I < 852)
BEGIN
SET @COLNAME = CAST(@I AS VARCHAR(20))


SET @SQL ='
ALTER TABLE MYTABLE
ADD [' + @COLNAME + '] VARCHAR(MAX);'
PRINT @SQL
EXEC(@SQL)
SET @I = @I + 1

END

然后只需将插入语句更改为：

INSERT INTO mytable
SELECT *
FROM   dbo.agente
       FULL JOIN dbo.cte
              ON dbo.agente.agente = dbo.cte.agente
       FULL JOIN dbo.cteenviara
              ON dbo.agente.agente = dbo.cteenviara.agente
       FULL JOIN dbo.unidad
              ON dbo.cteenviara.unidad = dbo.unidad.unidad
       FULL JOIN dbo.venta
              ON dbo.agente.agente = dbo.venta.agente
       FULL JOIN dbo.ventad
              ON dbo.agente.agente = dbo.ventad.agente
       FULL JOIN dbo.art
              ON dbo.ventad.articulo = dbo.art.articulo
       FULL JOIN dbo.alm
              ON dbo.venta.almacen = dbo.alm.almacen

这将为您提供列名称为 1、2、3... 等的结果，但它是一个动态名称，使您不必手动命名列。

Answer 3

我是动态做的，试试这个代码：列名会变成表名+列名所以不会有列名重复。

DECLARE @strColumns varchar(max) = ''

SELECT @strColumns = COALESCE(@strColumns + ',', '') + A.TableName + '.' + QuoteName(Column_Name) + ' AS ' + A.Alies
FROM (
SELECT Column_Name, 'Agente' TableName, 'Agente_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Agente' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'Cte' TableName, 'Cte_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Cte' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'CteEnviarA' TableName, 'CteEnviarA_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'CteEnviarA' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'Unidad' TableName, 'Unidad_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Unidad' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'Venta' TableName, 'Venta_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Venta' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'VentaD' TableName, 'VentaD_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'VentaD' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'Art' TableName, 'Art_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Art' AND DATA_TYPE != 'timestamp'
UNION ALL
SELECT Column_Name, 'Alm' TableName, 'Alm_' + QuoteName(Column_Name) AS Alies FROM INFORMATION_SCHEMA.COLUMNS WHERE Table_Name = 'Alm' AND DATA_TYPE != 'timestamp'
) AS A

SELECT @strColumns =SUBSTRING(@strColumns,2, len(@strColumns) - 1)
SELECT @strColumns


EXEC( 'SELECT 
    '+ @strColumns +' INTO ##temp
    FROM dbo.Agente 
    FULL JOIN dbo.Cte ON dbo.Agente.Agente = dbo.Cte.Agente 
    FULL JOIN dbo.CteEnviarA ON dbo.Agente.Agente = dbo.CteEnviarA.Agente 
    FULL JOIN dbo.Unidad ON dbo.CteEnviarA.Unidad = dbo.Unidad.Unidad 
    FULL JOIN dbo.Venta ON dbo.Agente.Agente = dbo.Venta.Agente 
    FULL JOIN dbo.VentaD ON dbo.Agente.Agente = dbo.VentaD.Agente 
    FULL JOIN dbo.Art ON dbo.VentaD.Articulo = dbo.Art.Articulo
    FULL JOIN dbo.Alm ON dbo.Venta.Almacen = dbo.Alm.Almacen')

SELECT * FROM ##temp
DROP TABLE ##temp

从 Select 查询创建 table

Create a table from a Select query

sql

tsql

sql-server

sql-server-2008

sql-server-2008-r2