How to achieve below requirement in SQL Server.
Data what I have:
and Expected output is:
Thanks,
Lawrance A
Assuming of your given data value:
'Message:"A",Level:"0",type:"log"'
'Message:"B",Level:"1",type:"log"'
select substring(ColumnA,10,1) Message,
replace(dbo.udf_GetNumeric(replace(replace(substring(ColumnA,20,5),'"',''),',','')),' ','')[type],
replace(replace(substring(ColumnA,29,250),'"',''),',','')[Log] from YourTable
GetNumeric here
I have created two function to achieve your desired output.
use below query by creating two function split and getVal
select
dbo.getVal(columnA,'Message') Message,
dbo.getVal(columnA,'Level') [Level],
dbo.getVal(columnA,'type') [type]
from TableA
Query for creating split and getVal function
Create function split(#s varchar(500),#splitWith varchar(20))
returns #RetTable Table(id int identity(1,1), Value varchar(200))
as
begin
if(CHARINDEX(#splitWith,#s)>0)
begin
set #s=#s+#splitWith
declare #len int =len(#s)
while charindex(#splitWith,#s)>0
begin
insert #RetTable values(SUBSTRING(#s,1,charindex(#splitWith,#s)-1))
set #s=SUBSTRING(#s,charindex(#splitWith,#s,1)+1,#len)
end
end
return
end
Create function getVal(#str varchar(500),#column varchar(200))
returns varchar(200)
as
begin
declare #ret varchar(200)
select #ret=value From dbo.split((select value From dbo.split('Message:"A",Level:"0",type:"log"',',') where value like +#column+'%'),':') where id=2
return replace(#ret,'"','')
end
Related
I need to write a SQL function to return column specific values, so I am passing the column name as a parameter to SQL-function to return its corresponding value. Here is the sample function
CREATE FUNCTION GETDATETIME(#columnName VARCHAR(100))
RETURNS DATETIME
AS
BEGIN
RETURN (SELECT TOP 1.#columnName FROM TEST_TABLE )
END
GO
The above function seems to be straight forward, but it not working as expected.
And when I execute the function
SELECT dbo.GETDATETIME('DATETIMECOLUMNNAME')
I am getting this error:
Conversion failed when converting date and/or time from character string.
Can someone help me to identify the issue?
For that you need to write dynamic sql. But Functions won't support execute statement.
So you need to write multiple If conditions for each column.
CREATE FUNCTION GETDATETIME(#columnName VARCHAR(100))
RETURNS DATETIME
AS
BEGIN
DECLARE #RESULT DATETIME;
IF (#columnName = 'ABC')
Begin
SELECT TOP 1 #RESULT = [ABC] FROM TEST_TABLE
END
ELSE IF (#columnName = 'DEF')
Begin
SELECT TOP 1 #RESULT = [DEF] FROM TEST_TABLE
END
ELSE IF (#columnName = 'GHI')
Begin
SELECT TOP 1 #RESULT = [GHI] FROM TEST_TABLE
END
RETURN #RESULT
END
GO
Edit 2:
If your column always return Datetime, then you can do like below.
CREATE TABLE A_DUM (ID INT, STARTDATE DATETIME, ENDDATE DATETIME, MIDDLEDATE DATETIME)
INSERT INTO A_DUM
SELECT 1, '2019-07-24 11:35:58.910', '2019-07-28 11:35:58.910', '2019-07-26 11:35:58.910'
UNION ALL
SELECT 2, '2019-07-29 11:35:58.910', '2019-08-01 11:35:58.910', '2019-07-24 11:35:58.910'
And your function like below
CREATE FUNCTION GETDATETIME(#columnName VARCHAR(100))
RETURNS DATETIME
AS
BEGIN
DECLARE #RESULT DATETIME;
SELECT TOP 1 #RESULT = CAST(PROP AS DATETIME)
FROM A_DUM
UNPIVOT
(
PROP FOR VAL IN (STARTDATE, ENDDATE,MIDDLEDATE)
)UP
WHERE VAL = #columnName
RETURN #RESULT
END
GO
There's a workaround to this, similar to #Shakeer's answer - if you are attempting to GROUP BY or perform a WHERE on a column name, then you can just use a CASE statement to create a clause to match on specific column names (if you know them).
Obviously this doesn't work very well if you have many columns to hard-code, but at least it's a way to achieve the general idea.
E.g. with WHERE clause:
WHERE
(CASE
WHEN #columnname = 'FirstColumn' THEN FirstColumnCondition
WHEN #columnname = 'SecondColumn' THEN SecondColumnCondition
ELSE SomeOtherColumnCondition
END)
Or with GROUP BY:
GROUP BY
(CASE
WHEN #columnname = 'FirstColumn' THEN FirstColumnGroup
WHEN #columnname = 'SecondColumn' THEN SecondColumnGroup
ELSE SomeOtherColumnGroup
END)
No you cannot use dynamic sql in functions in SQL. Please check this link for more info link.
So it is not possible to achieve this by any function, yes you may use stored procedures with output parameter for same.
You may find this link for reference link.
Wrote a function for accepting a Number and a user id and returning a table having individual digit in a single row with that User id. Function created successfully but when i tried to execute function its returning a blank table.
Attaching screenshot of function and output.
Create Function ExtractingDigits(#InputNumber INT, #UserId varchar)
RETURNS #ReturnTable Table(UserId Varchar(20), ModNumber Int)
as
begin
Declare #ModNumber Int
While #InputNumber!=0
begin
set #ModNumber= #InputNumber%10
set #InputNumber=#InputNumber/10
insert into #ReturnTable(UserId, ModNumber)
select * from #ReturnTable
end
return
end
select * from ExtractingDigits(123, 'as')
The fix is to use a VALUES clause for your INSERT rather than a SELECT from an empty table:
alter Function ExtractingDigits(#InputNumber INT, #UserId varchar)
RETURNS #ReturnTable Table(UserId Varchar(20), ModNumber Int)
as
begin
Declare #ModNumber Int
While #InputNumber!=0
begin
set #ModNumber= #InputNumber%10
set #InputNumber=#InputNumber/10
insert into #ReturnTable(UserId, ModNumber)
values (#UserId,#ModNumber)
end
return
end
go
select * from ExtractingDigits(123, 'as')
Just as style comments though, I'd also recommend a) changing either the parameter order or the table definition so that they're both consistent (i.e. have both be int, varchar or varchar, int rather than swapping) but b) recommend not including #UserId in this function at all. This would make the function much more generically usable:
alter Function ExtractingDigits(#InputNumber INT)
RETURNS #ReturnTable Table(ModNumber Int)
as
begin
Declare #ModNumber Int
While #InputNumber!=0
begin
set #ModNumber= #InputNumber%10
set #InputNumber=#InputNumber/10
insert into #ReturnTable(ModNumber)
values (#ModNumber)
end
return
end
go
select * from ExtractingDigits(123) cross apply (select 'as' as UserId)
I've created the following stored procedure:
ALTER PROCEDURE [dbo].[CountInJunction]
#Mod as nvarchar(10),
#Junction as nvarchar(10),
#PJ as nvarchar(10),
**#case as varchar(10)**,
#Date as varchar(20)
as
begin
declare #result as int
select #result = count(distinct CONCAT ([UCID],[CALLSEGMENT]))
from IVR_LINES
where MODULE = #Mod and DATE = #date
and EVENT_NAME = #Junction and **EVENT_VALUE in (#case)**
insert into [dbo].[MainJuncTable] values(#Mod,#PJ,#Junction,#case,#result,null,null,#date)
return #result
end
I would like to pass ('0','5') as #case.
for some reason, I get 0 as a result, which is not correct. Its seems that the SP doesn't interpret ('0','5') correctly.
I've been trying multiple combinations such as:
'0','5'
'0'+','+5''
'0,5'
etc..
nothing works.
Is there any way I can pass these chars correctly?
Thanks.
Send the values as a single string like ('0,5')
Then in where condition u need to split and select the values like,
where EVENT_VALUE in (select val from Split(#case,','))
Split is user defined function,you need to create before using it.
CREATE FUNCTION [dbo].[Split]
(
#delimited nvarchar(max),
#delimiter nvarchar(100)
) RETURNS #t TABLE
(
-- Id column can be commented out, not required for sql splitting string
id int identity(1,1), -- I use this column for numbering splitted parts
val nvarchar(max)
)
AS
BEGIN
declare #xml xml
set #xml = N'<root><r>' + replace(#delimited,#delimiter,'</r><r>') + '</r></root>'
insert into #t(val)
select
r.value('.','varchar(max)') as item
from #xml.nodes('//root/r') as records(r)
RETURN
END
GO
In every case, use this as your parameter value: '0,5'
But how to use it depends on the version of sql server you're using.
If you've got 2016, there's STRING_SPLIT. https://msdn.microsoft.com/en-us/library/mt684588.aspx
If you don't have it, you can create a function. See related stackoverflow posts: How to split a comma-separated value to columns
Or if you want rows: SQL query to split column data into rows
(See the higher rated recommendations in both of those.)
I want to run a stored procedure on each ID return by a SELECT query. Is there a simple way to do something like:
FOREACH (SELECT ID FROM myTABLE WHERE myName='bob') AS id
BEGIN
EXEC #return_value = [dbo].[spMYPROC]
#PARAM1 = id
#PARAM2 = 0
END
Since I just happened to answer a very similar question yesterday, I have this code handy. As others have stated, it may not be the best approach, but still it's nice to learn how to use a while loop anyway.
Assuming a table named "Customer"
declare #Id int
select #Id = MIN(Id)
from Customer c
while(select COUNT(1)
from Customer c
where c.Id >= #Id) > 0
begin
--run your sproc right here
select #Id = MIN(Id)
from Customer c
where c.Id > #Id
end
DECLARE #ID INT, #return_value INT
DECLARE c CURSOR FOR
SELECT
ID
FROM myTABLE
WHERE myName = 'bob'
OPEN c; FETCH NEXT FROM c INTO #ID
WHILE ##FETCH_STATUS = 0
BEGIN
EXEC #return_value = [dbo].[spMYPROC]
#PARAM1 = #ID,
#PARAM2 = 0
FETCH NEXT FROM c INTO #ID
END
CLOSE c; DEALLOCATE c;
You have two option here
Option 1 Using Split Function
Pass a comma deliminated list of IDs and use a Split function Inside your Procedure to make split these values and do whatever you want to do with it.
To
Make it work you will need two thing
1) Create a Function which
accepts a Comma Deliminated string and split them.
2) Modify you
Store Procedure and add this function in there in a way that passed
parameter is passed to the function inside that store procedure and
that function split the values before passing it onto your store
Procedure .
Create this function 1st
Function Definition
CREATE FUNCTION [dbo].[FnSplit]
(
#List nvarchar(2000),
#SplitOn nvarchar(5)
)
RETURNS #RtnValue table (Id int identity(1,1), Value nvarchar(100))
AS
BEGIN
WHILE(Charindex(#SplitOn,#List)>0)
BEGIN
INSERT INTO #RtnValue (value)
SELECT VALUE = ltrim(rtrim(Substring(#List,1,Charindex(#SplitOn,#List)-1)))
SET #List = SUBSTRING(#List,Charindex(#SplitOn,#List)+len(#SplitOn),len(#List))
END
INSERT INTO #RtnValue (Value)
SELECT VALUE = ltrim(rtrim(#List))
RETURN
END
Modify you strored Procedure something like this
Stored Procedure
ALTER Procedure [dbo].[spMYPROC] (#Param1 VARCHAR(1000)= NULL)
AS
BEGIN
SELECT * FROM TableName
where ColumnNAME IN (SELECT Value FROM dbo.FnSplit(#Param1,','))
END
GO
Option 2 Table Type Parameter
Create a Table Type and alter your proc to accept a Table Type Parameter and do whatever you want to do with them values inside your proc.
TABLE TYPE
CREATE TYPE dbo.TYPENAME AS TABLE
(
Value int
)
GO
Stored Procedure to Accept That Type Param
ALTER PROCEDURE [dbo].[spMYPROC]
#TableParam TYPENAME READONLY
AS
BEGIN
SET NOCOUNT ON;
--Temp table to store passed Id values
declare #tmp_values table (value INT );
--Insert passed values to a table variable inside the proc
INSERT INTO #tmp_values (value)
SELECT Value FROM #TableParam
/* Do your stuff here whatever you want to do with Ids */
END
EXECUTE PROC
Declare a variable of that type and populate it with your values.
DECLARE #Table TYPENAME --<-- Variable of this TYPE
INSERT INTO #Table --<-- Populating the variable
SELECT ID FROM myTABLE WHERE myName='bob'
EXECUTE [dbo].[spMYPROC] #Table --<-- Stored Procedure Executed
I have a stored procedure that take many input parameters including an #userID.
Now, in the core of the SP I select from a view using the following Where close :
Where userID = #userID
This works fine. Now I want to pass multiple users to be able wo query it like this :
where userID in (1,2,...)
How can I pass the value 1,2 from one input parameter ?
Thanks
Create a function split:
create FUNCTION [dbo].[Split]
(
#List nvarchar(2000),
#SplitOn nvarchar(5)
)
RETURNS #RtnValue table
(
Id int identity(1,1),
Value nvarchar(2000)
)
AS
BEGIN
While (Charindex(#SplitOn,#List)>0)
Begin
Insert Into #RtnValue (value)
Select Value = ltrim(rtrim(Substring(#List,1,Charindex(#SplitOn,#List)-1)))
Set #List = Substring(#List,Charindex(#SplitOn,#List)+len(#SplitOn),len(#List))
End
Insert Into #RtnValue (Value)
Select Value = ltrim(rtrim(#List))
Return
--select Value from dbo.Split('item1, item2, item3',',')
END
GO
And call the function with #PASS and use it inside a cursor.
Arrays and Lists in SQL Server
Create an input parameter which is a table varaible and send in the array as a table that you join to instead of using in. Read about this in BOL as it can be a little tricky to set up.