SELECT DISTINCT
U.UserId as 'Id',
U.FullName as 'Name',
(SELECT COUNT(*) FROM [Conversation]
WHERE FromUserId = 'user1' AND ToUserId = U.UserId) 'SentCount',
(SELECT COUNT(*) FROM [Conversation]
WHERE ToUserId = 'user1' AND FromUserId = U.UserId) 'ReceivedCount'
FROM
[Conversation] C
INNER JOIN
[User] U ON U.UserId = C.FromUserId
WHERE
C.ToUserId = 'user1'
Query returns a result but it doesn't include some of the rows. Conversation table contains the same FromUserId (send message user) and ToUserId (receive message user).
Here are the tables :
Current result -
Expected result:
Table with dummy data -
CREATE TABLE [dbo].[User](
[Id] [int] NULL,
[UserId] [varchar](5) NULL,
[Name] [varchar](5) NULL,
[Email] [varchar](11) NULL
) ON [PRIMARY]
INSERT [dbo].[User] ([Id], [UserId], [Name], [Email]) VALUES (1, N'user1', N'user1', N'user1#a.com')
INSERT [dbo].[User] ([Id], [UserId], [Name], [Email]) VALUES (2, N'user2', N'user2', N'user2#a.com')
INSERT [dbo].[User] ([Id], [UserId], [Name], [Email]) VALUES (3, N'user3', N'user3', N'user3#a.com')
INSERT [dbo].[User] ([Id], [UserId], [Name], [Email]) VALUES (4, N'user4', N'user4', N'user4#a.com')
INSERT [dbo].[User] ([Id], [UserId], [Name], [Email]) VALUES (5, N'user5', N'user5', N'user5#a.com')
CREATE TABLE [dbo].[Conversation](
[Id] [int] NULL,
[conversationId] [varchar](14) NULL,
[messageId] [varchar](4) NULL,
[fromUserId] [varchar](5) NULL,
[toUserId] [varchar](5) NULL
) ON [PRIMARY]
INSERT [dbo].[Conversation] ([Id], [conversationId], [messageId], [fromUserId], [toUserId]) VALUES (1, N'con-user1user2', N'mes1', N'user1', N'user2')
INSERT [dbo].[Conversation] ([Id], [conversationId], [messageId], [fromUserId], [toUserId]) VALUES (2, N'con-user1user2', N'mes2', N'user1', N'user2')
INSERT [dbo].[Conversation] ([Id], [conversationId], [messageId], [fromUserId], [toUserId]) VALUES (3, N'con-user2user1', N'mes3', N'user2', N'user1')
INSERT [dbo].[Conversation] ([Id], [conversationId], [messageId], [fromUserId], [toUserId]) VALUES (4, N'con-user1user3', N'mes4', N'user1', N'user3')
INSERT [dbo].[Conversation] ([Id], [conversationId], [messageId], [fromUserId], [toUserId]) VALUES (5, N'con-user4user1', N'mes5', N'user4', N'user1')
Can someone help how to includes all the records?
Thanks!
You don't need a join in the outer query. This would be more simply written as:
SELECT U.UserId as Id, U.FullName as Name,
(SELECT COUNT(*)
FROM [Conversation] c
WHERE c.FromUserId = 'user1' AND c.ToUserId = U.UserId
) as SentCount,
(SELECT COUNT(*)
FROM [Conversation] c
WHERE c.ToUserId = 'user1' AND c.FromUserId = U.UserId
) as ReceivedCount
FROM [User] U ;
Notes:
Qualify all column references. This is particularly important for correlation clauses.
Give tables aliases that are abbreviations for the table names.
Only use single quotes for string and date constants. Do not use the for column aliases.
Here is a db<>fiddle.
You don't need the conversation table at your base select. Something like this would work, but can be optimised with subqueries:
Select U.UserId as 'Id',
U.name as 'Name',
isnull(fromSummed.sentCount, 0) 'SentCount',
isnull(ToSummed.ReceivedCount, 0) 'ReceivedCount'
FROM [User] U
outer apply (select count(*) as sentCount from [Conversation] cFrom where cFrom.FromUserId = 'user1' and ToUserId = U.UserId ) fromSummed
outer apply (select count(*) as ReceivedCount from [Conversation] cTo where cTo.ToUserId = 'user1' and cTo.FromUserId = U.UserId) ToSummed
where isnull(fromSummed.sentCount, 0)>0 or isnull(ToSummed.ReceivedCount, 0)>0
Related
I have a question about SQL Server: how to convert rows to columns with comma-separated data using bulk data?
CREATE TABLE [dbo].[Emp]
(
[eid] [int] NULL,
[name] [varchar](50) NULL,
[sal] [money] NULL,
[doj] [date] NULL,
[deptno] [int] NULL
)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (1, N'a', 100.0000, CAST(N'2010-10-01' AS Date), 10)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (2, N'bb', 200.0000, CAST(N'2010-02-03' AS Date), 20)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (3, N'c', 300.0000, CAST(N'2017-02-03' AS Date), 30)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (4, N'd', 301.0000, CAST(N'2010-03-04' AS Date), 10)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (5, N'teee', 250.0000, CAST(N'2010-06-04' AS Date), 20)
INSERT [dbo].[Emp] ([eid], [name], [sal], [doj], [deptno])
VALUES (7, N'tte', 800.0000, CAST(N'2010-08-09' AS Date), 70)
I want output like below :
userlist
1,2,3,4,5,7
I tried this code:
select distinct
stuff((select ',' + cast(u.eid as varchar)
from emp u
where 1 = 1
for xml path('')), 1, 1, '') as userlist
from emp
Suppose if data has 100 thousand entries, then this query is not returning 100 thousand comma-separated
Could you please tell me how to write query to achieve this task in SQL Server?
I think the query is working as expected. But the result is too large to be displayed in management studio.
I have two tables I am joining with the following structure:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[ContentDivider](
[Id] [int] IDENTITY(1,1) NOT NULL,
[ParentId] [int] NULL,
[Name] [nvarchar](128) NOT NULL,
CONSTRAINT [PK_ContentDivider] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[CustomPage] Script Date: 23-03-2020 17:46:09 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[CustomPage](
[Id] [int] IDENTITY(1,1) NOT NULL,
[ContentDividerId] [int] NOT NULL,
[Name] [nvarchar](128) NOT NULL,
CONSTRAINT [PK_CustomPage] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
A ContentDivider can have n ContentDividers as Children and can have m CustomPages as children as well.
I want a View that counts the Display the current CustomDivider and the COunt for all the CustomPages as Children of the current ContentDivider.
My Test data:
SET IDENTITY_INSERT [dbo].[ContentDivider] ON
GO
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (1, NULL, N'TopLevel1')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (2, NULL, N'TopLevel2')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (3, NULL, N'TopLevel3')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (4, 1, N'SecondLevel1')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (5, 1, N'SecondLevel2')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (6, 1, N'SecondLevel3')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (7, 4, N'ThirdLevel1')
INSERT [dbo].[ContentDivider] ([Id], [ParentId], [Name]) VALUES (8, 4, N'ThirdLevel2')
GO
SET IDENTITY_INSERT [dbo].[ContentDivider] OFF
GO
SET IDENTITY_INSERT [dbo].[CustomPage] ON
GO
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (1, 1, N'Level1_1')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (2, 1, N'Level1_2')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (3, 2, N'Level1_3')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (4, 2, N'Level1_4')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (5, 4, N'Level1_5')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (6, 5, N'Level1_6')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (7, 7, N'Level1_7')
INSERT [dbo].[CustomPage] ([Id], [ContentDividerId], [Name]) VALUES (8, 8, N'Level1_8')
GO
SET IDENTITY_INSERT [dbo].[CustomPage] OFF
GO
And the View I want to extend:
SELECT dbo.ContentDivider.ParentId, dbo.ContentDivider.Name, dbo.ContentDivider.Id, COUNT(DISTINCT dbo.CustomPage.Id) AS CustomPageCount
FROM dbo.ContentDivider LEFT OUTER JOIN
dbo.CustomPage ON dbo.ContentDivider.Id = dbo.CustomPage.ContentDividerId
GROUP BY dbo.ContentDivider.ParentId, dbo.ContentDivider.Name, dbo.ContentDivider.Id
As for now the view counts the custompages directly underneath the contentdivider. I would like all the CustomPages as children counted.
Any suggestions?
The respected result would be:
View
this sounds like a perfect situation for recursive cte ;)
So, if I understood correctly, your expected result would be Toplevel1 with 6 pages and Toplevel 2 with 2 pages since all the other levels are somewhere beneath these two mentioned levels?
The cte might look something like this (maybe you habe to include the max recursion option):
WITH cte AS(
SELECT 1 lvl, ID AS ParentID, ID, Name
FROM dbo.ContentDivider cd
WHERE ParentId IS NULL
UNION ALL
SELECT c.lvl+1 AS lvl, c.ParentID, cd.ID, cd.Name
FROM dbo.ContentDivider cd
INNER JOIN cte c ON cd.ParentID = c.ID
)
SELECT c.ParentID, cd.Name, COUNT(DISTINCT cp.Id) AS CustomPageCount
FROM cte c
JOIN dbo.ContentDivider cd ON cd.ID = c.ParentID
LEFT OUTER JOIN dbo.CustomPage cp ON cp.ContentDividerId = c.id
GROUP BY c.ParentId, cd.Name
This leads to all pages being assigned to its top level.
See fiddle for details: http://sqlfiddle.com/#!18/f1a44/28/1
Edit: Since you need the details down to DividerID, I extended my example in the fiddle. First of all, I fetch the PageCount per ID in one cte and additionally the PageCount aggregated on level (ParentID and all its IDs) - this done you don't need the count and grouping in the following ctes.
In my query I then check, if my current rows ID is a top-level of any kind and assign the corresponding PageCount to this row.
WITH cteCnt AS(
SELECT cd.ID, COUNT(DISTINCT cp.Id) AS CustomPageCount
FROM dbo.ContentDivider cd
LEFT OUTER JOIN dbo.CustomPage cp ON cp.ContentDividerId = cd.id
GROUP BY cd.ID
),
cteTop AS(
SELECT cd.ID, COUNT(DISTINCT cp.Id) AS CustomPageCount
FROM dbo.ContentDivider cd
LEFT OUTER JOIN dbo.CustomPage cp ON cp.ContentDividerId = cd.id
GROUP BY cd.ID
UNION ALL
SELECT cd.ParentID, COUNT(DISTINCT cp.Id) AS CustomPageCount
FROM dbo.ContentDivider cd
LEFT OUTER JOIN dbo.CustomPage cp ON cp.ContentDividerId = cd.id
WHERE cd.ParentID IS NOT NULL
GROUP BY cd.ParentID
),
cteTopSum AS(
SELECT ID, SUM(CustomPageCount) AS CustomPageCount
FROM ctetop
GROUP BY ID
),
cte AS(
SELECT 1 lvl, cd.ID AS ParentID, cd.ID AS ParentIDx, cd.ID, cd.Name, cnt.CustomPageCount
FROM dbo.ContentDivider cd
INNER JOIN cteCnt cnt ON cnt.ID = cd.ID
WHERE ParentId IS NULL
UNION ALL
SELECT c.lvl+1 AS lvl, c.ParentID, cd.ParentID AS ParentIDx, cd.ID, cd.Name, cnt.CustomPageCount
FROM dbo.ContentDivider cd
INNER JOIN cteCnt cnt ON cnt.ID = cd.ID
INNER JOIN cte c ON cd.ParentID = c.ID
),
cteOut AS(
SELECT *
,SUM(CustomPageCount) OVER (PARTITION BY ParentID) x
,SUM(CustomPageCount) OVER (PARTITION BY ParentIDx) y
FROM cte c
)
SELECT CASE WHEN co.ParentIDx = co.ID THEN NULL ELSE co.ParentIDx END AS ParentID, co.ID, co.Name, CASE WHEN co.ID = co.ParentID THEN co.X ELSE ts.CustomPageCount END CustomPageCount
FROM cteOut co
LEFT JOIN cteTopSum ts ON ts.ID = co.ID
ORDER BY 1, 2
See new fiddle for details: http://sqlfiddle.com/#!18/f1a44/185/1
I'm mot sure, if there is a prettier / nicer way to solve this, but seemingly this seems to solve the problem.
However, I did NOT check if it works if any number of sublevels or whatsoever - if you find any issues, feel free to comment.
I have 2 tables. One of them has actual names and the other one has nicknames used by those people.
CREATE TABLE [dbo].[Customer](
[id] [int] IDENTITY(1,1) NOT NULL,
[firstName] [varchar](50) NULL,
[lastName] [varchar](50) NULL,
[active] [bit] NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[CustomerAKA](
[id] [int] NULL,
[akaFirstName] [varchar](50) NULL,
[akaLastName] [varchar](50) NULL
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[Customer] ON
INSERT [dbo].[Customer] ([id], [firstName], [lastName], [active]) VALUES (1, N'Op', N'Test', 0)
INSERT [dbo].[Customer] ([id], [firstName], [lastName], [active]) VALUES (2, N'M', N'J', 1)
INSERT [dbo].[Customer] ([id], [firstName], [lastName], [active]) VALUES (3, N'John', N'Doe', 1)
SET IDENTITY_INSERT [dbo].[Customer] OFF
INSERT [dbo].[CustomerAKA] ([id], [akaFirstName], [akaLastName]) VALUES (1, N'Hello', N'Test')
INSERT [dbo].[CustomerAKA] ([id], [akaFirstName], [akaLastName]) VALUES (1, N'Mahalo', N'Test')
INSERT [dbo].[CustomerAKA] ([id], [akaFirstName], [akaLastName]) VALUES (3, N'Jonny', N'Doe')
My query is :
select *
from dbo.Customer c1
left join dbo.CustomerAKA c2 on c2.id = c1.id
where not exists ( select *
from dbo.Customer c
where c.id = c1.id
and c.active = 0 )
Even though Op Test is not active, I still want to get the nicknames for him:
1 Hello Test
1 Mahalo Test
So my output should be :
M J
John Doe
Jonny Doe
Hello Test
Mahalo Test
Any ideas?
I think you want union all:
select c.firstname, c.lastname
from customer c
union all
select ca.akafirstname, c.akalastname
from customeraka ca join
customer c
on ca.id = c.id
where c.active = 1;
Try this:
/*
WITH
Customer (id, firstName, lastName, active) AS
(
VALUES
(1, 'Op', 'Test', 0)
, (2, 'M', 'J', 1)
, (3, 'John', 'Doe', 1)
)
, CustomerAKA (id, akaFirstName, akaLastName) AS
(
VALUES
(1, 'Hello', 'Test')
, (1, 'Mahalo', 'Test')
, (3, 'Jonny', 'Doe')
)
*/
SELECT firstName, lastName
FROM Customer
WHERE active = 1
UNION ALL
SELECT c2.akaFirstName AS firstName, c2.akaLastName AS lastName
FROM CustomerAKA c2
JOIN Customer c1 ON c1.id=c2.id;
Not sure about what you want
But seems something like
select *
from dbo.Customer c1
left join dbo.CustomerAKA c2 on c2.id = c1.id
where c1.active = 1 or (c1.firstname = "Op" and c1.lastname = "Test")
Order by c1.active desc
Or like
select
coalesce(c2.firstname, c1.firstname) as firstname,
coalesce(c2.lastname, c1.lastname) as lastname
from dbo.Customer c1
Left outer join dbo.CustomerAKA c2 on c2.id = c1.id
Order by c1.active desc
i have requirement where i need to show data of both tables when both the ID's are same.when id is present in first table and not there in second table i need to show data from first table
CREATE TABLE [dbo].[TEST](
[ID] [int] NULL,
[Name] [varchar](10) NULL,
[Status] [char](1) NULL,
[CreatedDate] [datetime] NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Test_History](
[ID] [int] NULL,
[Name] [varchar](10) NULL,
[Status] [char](1) NULL,
[CreatedDate] [datetime] NULL
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[Test_History] Script Date: 06/19/2015 19:01:49 ******/
INSERT [dbo].[Test_History] ([ID], [Name], [Status], [CreatedDate]) VALUES (1, N'Mohan', N'A', CAST(0x0000A4BC01347E88 AS DateTime))
INSERT [dbo].[Test_History] ([ID], [Name], [Status], [CreatedDate]) VALUES (1, N'Mohan', N'I', CAST(0x0000A4BC0134A390 AS DateTime))
INSERT [dbo].[Test_History] ([ID], [Name], [Status], [CreatedDate]) VALUES (2, N'Rohan', N'A', CAST(0x0000A4BC01391FCC AS DateTime))
/****** Object: Table [dbo].[TEST] Script Date: 06/19/2015 19:01:49 ******/
INSERT [dbo].[TEST] ([ID], [Name], [Status], [CreatedDate]) VALUES (2, N'Rohan', N'I', CAST(0x0000A4BC0138D584 AS DateTime))
INSERT [dbo].[TEST] ([ID], [Name], [Status], [CreatedDate]) VALUES (1, N'Mohan', N'A', CAST(0x0000A4BC013072DC AS DateTime))
INSERT [dbo].[TEST] ([ID], [Name], [Status], [CreatedDate]) VALUES (3, N'Raj', N'A', CAST(0x0000A4BC0138DED7 AS DateTime))
INSERT [dbo].[TEST] ([ID], [Name], [Status], [CreatedDate]) VALUES (4, N'Krishna', N'A', CAST(0x0000A4BC0138EE31 AS DateTime))
so far i have tried my query to achieve the result
select T.ID,COALESCE(T.ID,TT.ID),T.Name,COALESCE(T.Name,TT.Name),T.status,COALESCE(T.status,TT.status)
from Test T LEFT JOIN (Select TOP 1 ID,MIN(Name)name,Status from Test_History
GROUP BY ID,status
)TT
ON T.ID = TT.ID
where T.ID = 3
Id = 1 and 2 present show i will get data from both tables
Id = 3 and 4 not present in the table
so using coalesce i will get the data
from first table and show in 2nd table column also
but is there any other way like both tables are same structure
i'm thinking of
Declare #tablename varchar(10)
IF EXISTS (SELECT 1 from TESt where id = #id)
IF COunt there in both tables
SET #tablename = Test
ELSE
SET #tablename = Test_history
select * from #tablename where id = #ID
can i get any solution like this
You can use EXCEPT.
Here is an example:
SELECT a,b
FROM (
VALUES (1, 2), (3, 4), (5, 6), (7, 8), (9, 10)
) AS MyTable(a, b)
EXCEPT
SELECT a,b
FROM (
VALUES (1, 2), (7, 8), (9, 10)
) AS MyTable(a, b);
This will return all rows of the upper statement, which are not in the second statement.
First: Thanks for the excellent setup for the data related to the question!
If your real question was if table variables can be used as described in your question, the answer is no; or more accurately that its not worth it.
Not recommended:
declare #TableName TABLE (
[ID] [int] NULL,
[Name] [varchar](10) NULL,
[Status] [char](1) NULL,
[CreatedDate] [datetime] NULL)
IF EXISTS (SELECT 1 from TESt where id = #id)
INSERT INTO #TableName SELECT * FROM dbo.TEST WHERE ID = #ID
ELSE INSERT INTO #TableName SELECT * FROM dbo.[Test_History] WHERE ID = #ID
select * from #tablename where id = #ID
Here's the solution I prefer:
DECLARE #ID INT = 3;
SELECT * FROM [dbo].[TEST] ss WHERE ss.id = #id
UNION ALL SELECT * FROM [dbo].[Test_History] th WHERE th.id = #id
and not exists ( SELECT * FROM [dbo].[TEST] ss WHERE ss.id = #id);
UNION ALL performs surprisingly well - don't forget the ALL keyword, and I am assuming that ID is a PK or AK.
If I'm understanding correctly and you want to display all records that match between the two tables and only records from first table when the id does not exist in the second in the same result set, then all you need is a simple left join:
SELECT *
FROM dbo.test t
LEFT OUTER JOIN Test_History th
ON t.id = th.id
WHERE t.id = #id
I am sorry if the answer has been posted already, but I was not able to find the answer even after searching.
I have the following table
CREATE TABLE [dbo].[emp](
[id] [int] NOT NULL,
[name] [varchar](20) NULL,
[mgrid] [int] NULL
) ON [PRIMARY]
With data
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (1, N'a', 0)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (2, N'a1', 1)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (3, N'a11', 2)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (4, N'a12', 2)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (5, N'a13', 2)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (6, N'a2', 1)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (7, N'a3', 1)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (8, N'a31', 7)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (9, N'a32', 7)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (10, N'b', 0)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (11, N'b1', 10)
INSERT [dbo].[emp] ([id], [name], [mgrid]) VALUES (12, N'b2', 10)
And I would like the following output
a
a1
a11
a12
a13
a2
a3
a31
a32
b
b1
b2
Is this possible in SQL Server?
SQLFiddle demo
You can use ' ' instead of '+' in the last line to pad a string.
with t as
(
select id,name,mgrid,1 as level,cast(name as varchar(max)) as path
from emp where mgrid=0
union all
select emp.id,emp.name,emp.mgrid, t.level+1 as level,
t.path+cast(emp.name as varchar(max)) as path
from emp
join t on emp.mgrid=t.id
)
select replicate('+', level)+name from t order by path
with CTE as
(
select *
, level = 1
from emp
where mgrid = 0
union all
select emp.id,
name = cast(space((level) * 3) + emp.name as varchar(20)),
emp.mgrid,
level = level + 1
from emp
inner join CTE on CTE.id = emp.mgrid
)
select name
from CTE
order by ltrim(name)
Query:
DECLARE #temp TABLE
(
[id] [int] NOT NULL,
[name] [varchar](20) NULL,
[mgrid] [int] NULL
)
INSERT INTO #temp ([id], [name], [mgrid])
VALUES
(1, N'a', 0), (2, N'a1', 1),
(3, N'a11', 2), (4, N'a12', 2),
(5, N'a13', 2), (6, N'a2', 1),
(7, N'a3', 1), (8, N'a31', 7),
(9, N'a32', 7), (10, N'b', 0),
(11, N'b1', 10), (12, N'b2', 10)
DECLARE #out VARCHAR(MAX) = ''
;WITH cte AS
(
SELECT *, Lvl = 0, nn = CAST(name AS VARCHAR(MAX))
FROM #temp
WHERE mgrid = 0
UNION ALL
SELECT t.*, c.Lvl + 1, nn = CAST(REPLICATE(' ', c.Lvl + 1) + t.name AS VARCHAR(MAX))
FROM #temp t
JOIN cte c ON c.id = t.mgrid
)
SELECT #out = (
SELECT nn + CHAR(13)
FROM cte
ORDER BY LTRIM(nn)
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)')
PRINT #out
Output:
a
a1
a11
a12
a13
a2
a3
a31
a32
b
b1
b2
You can use CTE (Comnon table expression to achieve this)
check this sample code:
declare #emp table(
[id] [int] NOT NULL,
[name] [varchar](20) NULL,
[mgrid] [int] NULL
)
INSERT #emp ([id], [name], [mgrid]) VALUES (1, N'a', 0)
INSERT #emp ([id], [name], [mgrid]) VALUES (2, N'a1', 1)
INSERT #emp ([id], [name], [mgrid]) VALUES (3, N'a11', 2)
INSERT #emp ([id], [name], [mgrid]) VALUES (4, N'a12', 2)
INSERT #emp ([id], [name], [mgrid]) VALUES (5, N'a13', 2)
INSERT #emp ([id], [name], [mgrid]) VALUES (6, N'a2', 1)
INSERT #emp ([id], [name], [mgrid]) VALUES (7, N'a3', 1)
INSERT #emp ([id], [name], [mgrid]) VALUES (8, N'a31', 7)
INSERT #emp ([id], [name], [mgrid]) VALUES (9, N'a32', 7)
INSERT #emp ([id], [name], [mgrid]) VALUES (10, N'b', 0)
INSERT #emp ([id], [name], [mgrid]) VALUES (11, N'b1', 10)
INSERT #emp ([id], [name], [mgrid]) VALUES (12, N'b2', 10);
with cte (id,name, MGRID) as
(
select id, name,MGRID
from #emp
union all
select c.id, c.name, c.MGRID
from #emp c
inner join cte p
on c.mgrid = P.id
)
SELECT Distinct * FROM CTE
WITH RCTE AS
(
SELECT id, name, mgrid, CAST('' AS NVARCHAR(MAX)) AS blanks , CAST(name AS NVARCHAR(MAX)) AS ordr
FROM dbo.emp WHERE mgrid = 0
UNION ALL
SELECT e.id, e.name, e.mgrid, blanks + ' ' AS blanks, ordr + e.name AS ordr
FROM dbo.emp e
INNER JOIN RCTE r ON e.mgrid = r.id
)
SELECT blanks + name FROM RCTE
ORDER BY ordr