SQL将数据插入临时表并将结果另存为视图

Posted 2021-04-04

我正在尝试用以下查询做两件事：

1. 编辑查询以获取仅在'd|'和')()'之间的所有日期.....所以例如在clndr_data中(0||3(d|41429)()) (0||4(d|41464)( (0||0(s|09:00|f|15:00)())))仅返回41429。下面的查询返回'|d'之后的所有日期。
2. 将输出存储为View（Proj_ID，Clndr_ID，Dates）

DECLARE @project_name   varchar(50) =   'NA63-TEN-20-05-12-01'
DECLARE @project_id     int         =   (SELECT [proj_id] FROM [PMDB].[dbo].   [PROJECT] WHERE [proj_short_name] = @project_name)
DECLARE @calendar       int         =   (SELECT [clndr_id] FROM [PMDB].[dbo].[PROJECT] WHERE [proj_short_name] = @project_name)
DECLARE @clndr_id       int
DECLARE @walker         int         =   0
DECLARE @holder         varchar(MAX)
DECLARE @date           date
DECLARE @temp_tb        table([id] int , [value] varchar(50))

SET @holder = (SELECT [clndr_data] FROM [PMDB].[dbo].[CALENDAR] WHERE [clndr_id] = @calendar )
SET @clndr_id = (SELECT [clndr_id] FROM [PMDB].[dbo].[CALENDAR] WHERE [clndr_id] = @calendar)

WHILE CHARINDEX('d|', @holder) > 0
BEGIN
    SET @walker = CHARINDEX('d|', @holder) + 2
    SET @date = DATEADD(D, CAST((SELECT SUBSTRING(@holder, @walker, 5)) AS int) - 2, '01/01/1900')
    INSERT INTO @temp_tb VALUES (@clndr_id, @date)
    SET @holder = SUBSTRING(@holder, @walker + 5, LEN(@holder))
END

SELECT * FROM @temp_tb

答案

我加入了你的PROJECT和CALENDAR表。然后将参数设置为proj_id和clndr_id的相应值，以便在INSERT之前进行准备，因为date_value列的值需要首先在WHILE内处理。

连接到问题：SQL While Loop exists

DECLARE @project_name   varchar(50)     = 'NA63-TEN-20-05-12-01'
DECLARE @project_id     int
DECLARE @clndr_id       int
DECLARE @walker         int             =   0
DECLARE @holder         varchar(MAX)
DECLARE @date           date
DECLARE @data           varchar(MAX)
DECLARE @temp_tb        table([proj_id] int, [clndr_id] int , [date_value] date)

SELECT @project_id = [p].[proj_id]
      ,@clndr_id = [p].[clndr_id]
      ,@holder = [c].[clndr_data]
FROM [PMDB].[dbo].[PROJECT] AS [p]
INNER JOIN [PMDB].[dbo].[CALENDAR] AS [c] ON [p].[clndr_id] = [c].[clndr_id]
WHERE [p].[proj_short_name] = @project_name


WHILE @walker &lt&gt LEN(@holder) + 1
BEGIN
    IF SUBSTRING(@holder, @walker, 2) = 'd|'
    BEGIN
        SET @data = SUBSTRING(@holder, @walker, 10)
        IF SUBSTRING(@data, LEN(@data) - 2, 3) = ')()'
        BEGIN
            SET @date = DATEADD(D, CAST(SUBSTRING(@data, 3, 5) AS int) -2, '01/01/1900')
            INSERT INTO @return_tb VALUES (@project_id, @clndr_id, @date)
        END
    END
    SET @walker = @walker + 1
END

SELECT * FROM @temp_tb

如果您想将其保存为view，请首先在function上创建上面的代码。

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:      
-- Create date: 
-- Description: 
-- =============================================
CREATE FUNCTION GetProjectDates 
(   
     @project_name  varchar(50)
)
RETURNS @return_tb TABLE([proj_id] int, [clndr_id] int , [date_value] date)
AS
BEGIN 
    -- Add the SELECT statement with parameter references here
    DECLARE @project_id int
    DECLARE @clndr_id   int
    DECLARE @walker     int             =   0
    DECLARE @holder     varchar(MAX)
    DECLARE @date       date
    DECLARE @data       varchar(MAX)

    SELECT @project_id = [p].[proj_id]
          ,@clndr_id = [p].[clndr_id]
          ,@holder = [c].[clndr_data]
    FROM [PMDB].[dbo].[PROJECT] AS [p]
    INNER JOIN [PMDB].[dbo].[CALENDAR] AS [c] ON [p].[clndr_id] = [c].[clndr_id]
    WHERE [p].[proj_short_name] = @project_name

    WHILE @walker &lt&gt LEN(@holder) + 1
    BEGIN
        IF SUBSTRING(@holder, @walker, 2) = 'd|'
        BEGIN
            SET @data = SUBSTRING(@holder, @walker, 10)
            IF SUBSTRING(@data, LEN(@data) - 2, 3) = ')()'
            BEGIN
                SET @date = DATEADD(D, CAST(SUBSTRING(@data, 3, 5) AS int) -2, '01/01/1900')
                INSERT INTO @return_tb VALUES (@project_id, @clndr_id, @date)
            END
        END
        SET @walker = @walker + 1
    END

    RETURN
END
GO

然后将以下代码保存为您的视图：

SELECT * FROM [GetProjectDates]('NA63-TEN-20-05-12-01')

另一答案

我不确定，但可能在下面查询会帮助你。因为我假设日期值只有5位数。

create table #yourtable (
    cola varchar(1000)
    )
;

insert into #yourtable
values ('(0||3(d|41429)())')

insert into #yourtable
values ('(0||4(d|41464)( (0||0(s|09:00|f|15:00)())))')

select  SUBSTRING(cola,9,5)
from #yourtable
where PATINDEX('%[0-9][0-9][0-9][0-9][0-9])()%', cola )>0