June 28, 2016 at 8:41 am
narayanamoorthy.a (6/28/2016)
Its foreign key. Unique identifier Not Null.
Both columns?
Please post CREATE TABLE scripts for both tables.
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
June 28, 2016 at 8:44 am
Yes ID column is primary key and ID_TASK_USER is foreign key with unique identifiers. Below is the script
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[task_attach](
[id] [uniqueidentifier] NOT NULL,
[id_task_user] [uniqueidentifier] NOT NULL,
[detail] [nvarchar](255) NULL,
[file_name] [nvarchar](255) NULL,
[file_url] [nvarchar](255) NULL,
[file_format] [nvarchar](255) NULL,
[file_type] [int] NULL,
[include_mode] [tinyint] NULL,
[embedded_data] [image] NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
ALTER TABLE [dbo].[task_attach] WITH NOCHECK ADD CONSTRAINT [FK_task_attach_task_user] FOREIGN KEY([id_task_user])
REFERENCES [dbo].[task_user] ([id])
ON UPDATE CASCADE
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[task_attach] CHECK CONSTRAINT [FK_task_attach_task_user]
GO
June 28, 2016 at 8:51 am
narayanamoorthy.a (6/28/2016)
Yes ID column is primary key and ID_TASK_USER is foreign key with unique identifiers. Below is the scriptSET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[task_attach](
[id] [uniqueidentifier] NOT NULL,
[id_task_user] [uniqueidentifier] NOT NULL,
[detail] [nvarchar](255) NULL,
[file_name] [nvarchar](255) NULL,
[file_url] [nvarchar](255) NULL,
[file_format] [nvarchar](255) NULL,
[file_type] [int] NULL,
[include_mode] [tinyint] NULL,
[embedded_data] [image] NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
ALTER TABLE [dbo].[task_attach] WITH NOCHECK ADD CONSTRAINT [FK_task_attach_task_user] FOREIGN KEY([id_task_user])
REFERENCES [dbo].[task_user] ([id])
ON UPDATE CASCADE
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[task_attach] CHECK CONSTRAINT [FK_task_attach_task_user]
GO
Same for task_user please.
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
June 28, 2016 at 8:52 am
Can you include the CREATE TABLE script for task_user as well?
June 28, 2016 at 8:56 am
Below script is of task_user
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[task_user](
[id] [uniqueidentifier] NOT NULL,
[id_acs_user] [uniqueidentifier] NOT NULL,
[task_type] [int] NOT NULL,
[name] [nvarchar](15) NOT NULL,
[status] [smallint] NULL,
[xoperation] [ntext] NULL,
[xparameters] [ntext] NULL,
[xreport] [ntext] NULL,
[date_begin] [datetime] NULL,
[date_end] [datetime] NULL,
[date_schedule] [datetime] NULL,
[id_link] [uniqueidentifier] NULL,
[id_supertask] [uniqueidentifier] NULL,
CONSTRAINT [PK__task_user__26509D48] PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
ALTER TABLE [dbo].[task_user] WITH NOCHECK ADD CONSTRAINT [FK_task_user_acs_user] FOREIGN KEY([id_acs_user])
REFERENCES [dbo].[acs_user] ([id])
ON UPDATE CASCADE
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[task_user] CHECK CONSTRAINT [FK_task_user_acs_user]
GO
ALTER TABLE [dbo].[task_user] ADD CONSTRAINT [DF_task_user_task_type] DEFAULT (0) FOR [task_type]
GO
June 28, 2016 at 9:00 am
Just to recap, when you run the third query, this one:
-- checkin
select count(*), avg(datalength(embedded_data)) from task_attach where id_task_user in (
select id
from task_user
where task_type = 2
and date_begin >= CAST(CAST(DATEADD(DAY,-180,GETDATE()) AS DATE) AS DATETIME)
)
you get an error?
What about when you run just the subquery:
(
select id
from task_user
where task_type = 2
and date_begin >= CAST(CAST(DATEADD(DAY,-180,GETDATE()) AS DATE) AS DATETIME)
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
June 28, 2016 at 9:02 am
The sub query gets executed successfully.
June 28, 2016 at 9:03 am
When i run the whole query below i get error. The subquery runs successfully.
Msg 8115, Level 16, State 2, Line 1
Arithmetic overflow error converting expression to data type int.
select count(*), avg(datalength(embedded_data)) from task_attach where id_task_user in (
select id
from task_user
where task_type = 2
and date_begin >= CAST(CAST(DATEADD(DAY,-180,GETDATE()) AS DATE) AS DATETIME)
)
June 28, 2016 at 9:05 am
select count(*), avg(datalength(embedded_data)) from task_attach where id_task_user = NEWID()
AVG_BIG()?
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
June 28, 2016 at 9:09 am
The output is
0, NULL
June 28, 2016 at 9:09 am
Just a thought - try this mod:
AVG(CAST(datalength(embedded_data) AS BIGINT))
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
June 28, 2016 at 9:14 am
Wow, it worked. 🙂
select count(*), AVG(CAST(datalength(embedded_data) AS BIGINT)) from task_attach where id_task_user in (
select id
from task_user
where task_type = 2
and date_begin >= CAST(CAST(DATEADD(DAY,-180,GETDATE()) AS DATE) AS DATETIME)
)
June 28, 2016 at 9:17 am
ChrisM@Work (6/28/2016)
Just a thought - try this mod:
AVG(CAST(datalength(embedded_data) AS BIGINT))
More like this:
AVG(datalength(CAST(embedded_data AS varbinary(MAX))))
However, the image data type length can fit in an int.
From BOL for DATALENGTH:
Return Types
bigint if expression is of the varchar(max), nvarchar(max) or varbinary(max) data types; otherwise int.
June 28, 2016 at 9:18 am
So is it a problem with the code ?
June 28, 2016 at 9:27 am
Luis Cazares (6/28/2016)
ChrisM@Work (6/28/2016)
Just a thought - try this mod:
AVG(CAST(datalength(embedded_data) AS BIGINT))More like this:
AVG(datalength(CAST(embedded_data AS varbinary(MAX))))However, the image data type length can fit in an int.
From BOL for DATALENGTH:
Return Types
bigint if expression is of the varchar(max), nvarchar(max) or varbinary(max) data types; otherwise int.
Yes, but n (rows) * datalength might not. Good catch though Luis.
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
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