SQL 2012 :: Using CASE In Order To Update Columns To Be Either A Or B
May 13, 2015
I am relatively new to complex queries and need creating a query using a CASE in order to update columns to be either A or B. A few things about this is that I am joining tables from linked servers as well. This is the last part. I execute the query and receive the error:
Incorrect syntax near the keyword 'from'.
select (select FirstName from [ZZZXXX].HCM.dbo.tPerson where PersonGUID = tPersonJobHistAlias.SupervisorPersonGUID) as supervisorFirstName,
(select LastName from [ZZZXXX].HCM.dbo.tPerson where PersonGUID = tPersonJobHistAlias.SupervisorPersonGUID) as supervisorLastName,
(select PersonID from [ZZZXXX].HCM.dbo.tPerson where PersonGUID = tPersonJobHistAlias.SupervisorPersonGUID) as SupervisorEmployeeID,
[Code] .....
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Nov 7, 2003
I'm unable to specify multiple columns in my order by statement if i use a case statement.
Does anyone know why this is, or what syntax would make this work?
Thanks
SELECT ....
ORDER BY (CASE Lower(@SortExpression)
WHEN 'prodname' THEN prodname, prodprice
WHEN 'prodsize' THEN prodsize, prodname
WHEN 'prodprice' THEN prodprice, prodname
Else prodcompany, prodname
END)
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Sep 9, 2015
I'm trying to set up a statement that gives me a field called 'BINNO' if the payor = Commercial. But, I have a few customers that don't have Commercial. They have a Payor of Grant or Part D. How would I set up a statement that looks for Commerical 1st...then Grant or Part D. I started with this
case when inscomp.payor = 'COMMERCIAL' then INSCOMP.BINNO
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Apr 28, 2006
Hi, all here,
I am having a question-is it possible to update several columns using CASE expression in SQL language? like if I wanna set each CASE for each column.
Thanks a lot in advance for any help and guidance.
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Nov 15, 2013
I want to update multiple column in one table using with case statement. i need query pls..
stdidnamesubject result marks
1 arun chemistry pass 55
2 alias maths pass 70
3 babau history pass 55
4 basha hindi NULL NULL
5 hussain hindi NULL nULL
6 chandru chemistry NULLNULL
7 mani hindi NULLNULL
8 rajesh history NULLNULL
9 rama chemistry NULLNULL
10 laxman maths NULLNULL
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Oct 20, 2014
I have a stored proc that contains an update which utilizes a case statement to populate values in a particular column in a table, based on values found in other columns within the same table. The existing update looks like this (object names and values have been changed to protect the innocent):
UPDATE dbo.target_table
set target_column =
case
when source_column_1= 'ABC'then 'XYZ'
when source_column_2= '123'then 'PDQ'
[Code] ....
The powers that be would like to replace this case statement with some sort of table-driven structure, so that the mapping rules defined above can be maintained in the database by the business owner, rather than having it embedded in code and thus requiring developer intervention to perform changes/additions to the rules.
The rules defined in the case statement are in a pre-defined sequence which reflects the order of precedence in which the rules are to be applied (in other words, if a matching value in source_column_1 is found, this trumps a conflicting matching value in source_column_2, etc). A case statement handles this nicely, of course, because the case statement will stop when it finds the first "hit" amongst the WHEN clauses, testing each in the order in which they are coded in the proc logic.
What I'm struggling with is how to replicate this using a lookup table of some sort and joins from the target table to the lookup to replace the above case statement. I'm thinking that I would need a lookup table that has column name/value pairings, with a sequence number on each row that designates the row's placement in the precedence hierarchy. I'd then join to the lookup table somehow based on column names and values and return the match with the lowest sequence number, or something to that effect.
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Aug 5, 2015
I have a table with 8 columns, I need to update data in multiple columns on this table, this table contains 1 million records, having single update was taking time so I broke the single update into multiple update statements and running multiple update statements in parallel, Each update statement updates different column.
This approach is working fine but I am getting the deadlock error.
Transaction (Process ID 65) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
I tried with various lock hints but no success.
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Aug 13, 2014
i was tasked to created an UPDATE statement for 6 tables , i would like to update 4 columns within the 6 tables , they all contains the same column names. the table gets its information from the source table, however the data that is transferd to the 6 tables are sometimes incorrect , i need to write a UPDATE statement that will automatically correct the data. the Update statement should also contact a where clause
the columns are [No] , [Salesperson Code], [Country Code] and [Country Name]
i was thinking of doing
Update [tablename]
SET [No] =
CASE
WHEN [No] ='AF01' THEN 'Country Code' = 'ZA7' AND 'Country Name' = 'South Africa'
ELSE 'Null'
END
What is the best way to script this
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May 30, 2015
I want to compare two columns in the same table called start date and end date for one clientId.if clientId is having continuous refenceid and sartdate and enddate of reference that I don't need any caseopendate but if clientID has new reference id and it's start date is not continuous to its previous reference id then I need to set that start date as caseopendate.
I have table containing 5 columns.
caseid
referenceid
startdate
enddate
caseopendate
[code]...
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Dec 22, 2006
this is my query="SELECT i.itemid,title,SortKey from Items AS i JOIN Links AS L ON(i.ItemID=L.ItemID) WHERE L.instructorID='12232' AND courseID='12' ANDtype='Audio' order by CASE WHEN Sortkey is not null then 1 else 0 end"My SortKey can be NULL. Here's the output I am getting:(the || is to denote sortkey column)37542 Tape 1 ||37544 Tape 2 ||37819 Symphony1 ||37820 Symphony2 ||37821 Symphony3 ||37828 Symphony ||60962 Test ||61570 New Test Record |Africa|61572 Test 3 |Africa 1|63186 Music for Strings |Brazil|I want use Sortkey when it is not null. desired output:61570 New Test Record |Africa|61572 Test 3 |Africa 1|63186 Music for Strings |Brazil|37542 Tape 1 ||37544 Tape 2 ||37819 Symphony1 ||37820 Symphony2 ||37821 Symphony3 ||37828 Symphony ||60962 Test ||
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Oct 31, 2013
It will be part of the stored proc, but for now I couldn't even get it running in ssms. It will be two parameters/variables, one for order by column name and other for order by direction, i.e. desc or asc.I have tried following three ways, but none is working:
(1)
order by case when @Sort_by= '[A_ID]' AND @Sort_Dir ='Desc' then A_ID end desc
case when @Sort_by= '[A_ID]' AND @Sort_Dir ='Asc' then A_ID end asc
(2)
order by case when @Sort_by= '[A_ID]' AND @Sort_Dir ='Desc' then A_ID desc end
case when @Sort_by= '[A_ID]' AND @Sort_Dir ='Asc' then A_ID asc end
(3)
ORDER BY CASE @Sort_by when '[A_ID]' then [A_ID] end
Case @Sort_Dir when 'Desc' then desc end
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Feb 15, 2008
The query below at the bottom works, but when I try to add the line below (a third line/argument in the CASE statement) then I get an error. It is not possible to have a table name and a DESC (sort order) in the same CASE line/argument. Are there other ways to accomplish this, because I would like to sort with both "h.ObjectType" and "h.ObjectType DESC"? WHEN @SortBy = 2 THEN h.ObjectType DESC SELECT weight, ObjectText.ObjectId, ObjectText.ObjectType, ObjectText.Title, ObjectText.ShortText FROM @hits h INNER JOIN ObjectText ON h.id = ObjectText.ObjectId AND h.ObjectType = ObjectText.ObjectType WHERE ObjectText.LanguageCode = @LanguageCode ORDER BY CASE WHEN @SortBy = 0 THEN weight WHEN @SortBy = 1 THEN h.ObjectType END DESCRegards, Sigurd
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Aug 30, 2000
I have a case-insensitive sort order on my SQL7, NT4, SP1,2 installation. However, there are times when I want to do case-sensitive search ciriteria.
Is there something like the pseudo code:
SET SORT ORDER CASE-SENSITIVE ON
SELECT * FROM table WHERE name = 'Black'
SET SORT ORDER CASE-SENSITIVE OFF
..that doesn't return 'BLACK'
thanks in advance for your time
BL
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Jul 20, 2005
I have a query which filters records containing uppercase andLowercase i.e.Smith and SMITH, Henderson and HENDERSON etc.Is there a way that I can filter only those records that contain thefirst uppercase letter and the remaining lowercase letters for myquery i.e. Smith , HENDERSON etc.Thanks
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Sep 24, 2015
I have the following query in a user-defined function. It accepts a single string parameter, but for the sake of simplicity, I have substituted actual strings in the query. It basically checks the passed string. If it ends with "Id", it strips off the "Id" and returns the resulting string. If it ends with "Id" followed by a digit, it strips that off and returns the string.
SELECT CASE
WHEN LEN('IncidentViolationId') > 2 AND RIGHT('IncidentViolationId', 2) = 'Id' THEN LEFT('IncidentViolationId', LEN('IncidentViolationId') - 2)
WHEN PATINDEX('%Id[0-9]', 'IncidentViolationId') > 1 THEN LEFT('IncidentViolationId', PATINDEX('%Id[0-9]', 'IncidentViolationId') - 1)
ELSE 'IncidentViolationId' END
This code has worked flawlessly for quite some time and all of a sudden I get "Invalid length parameter passed to left function". I understand why LEFT() would normally fail if I passed it a -1 for the second parameter, but in this scenario, asI understand it, it never should have reached the second WHEN condition since the first one evaluates to true. Why and why all of a sudden?
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Sep 24, 2015
I use Order By Used with Case Statement and may be this is the reason for which i am getting error
Windowed functions can only appear in the SELECT or ORDER BY clauses.
Here is my complete sql where i use Row_Number function for pagination with sorting.
DECLARE @StartIndex INT
DECLARE @EndIndex INT
DECLARE @SortColumn VARCHAR(MAX)
DECLARE @SortDirection VARCHAR(MAX)
SET @StartIndex = 1
[Code] ....
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Jan 18, 2007
Hi All,
I have this query :
select col1, col2, col3, col4, col5,..... , (select col99 from tab2) as alias1 from tab1 where <condition>
order by
case @sortby
when 'col1' then col1,
when 'col2' then col2,
when 'col3' then col3,
when 'col99' then col99
end
when i execute the above query it gives me the following error message.
Server: Msg 207, Level 16, State 3, Line 1
Invalid column name 'col99'.
Thanks in advance.
Thanvi.
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Jul 23, 2005
I have created a SQL Stored Procedure that uses a Case statement todetermine the Order By. For one of the Case statements I am trying toturn a Char field into Datetime in for the Order By, however I can notget it to work. Can someone please take a look and my code below andtell me what I am doing wrong. Thank you.ORDER BYCASE WHEN @SortBy = 'dttm_stamp' THEN dttm_stamp End,CASE WHEN @SortBy = 'Event_Date1' THEN CAST(CONVERT(char(10),Event_Date1,101) as datetime) End,CASE WHEN @SortBy = 'FullName' THEN Emp_lastname + ', ' +Emp_firstname End,CASE WHEN @SortBy = 'FullName Desc' THEN Emp_lastname + ', ' +Emp_firstname End DESC,CASE WHEN @SortBy = 'Emp_SSN' THEN Emp_SSN End
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Feb 22, 2008
I have been trying to get the following Selects to work using a case expression in the order by section.
I know I can easily separate out the two statements but I want to do a select using the case statement below ;
however, I keep getting error 16 --"Order by items must appear in the select list if the statement contains a union.
If remove the case statement and put order by "internalID desc" I receive no errors. Moreover, when I take out the union statement and execute the two select statements with each including the case expression it runs as planned.
Can anyone tell what the problem is here? I have combed the web looking for an answer, but it seems that the statement is valid.
Thanks
J
declare @date
set @date = '2001'
select internalID from section_data_v3
union
select internalID from section_data_v4
order by
case when (@date = '2001') then internalID end desc
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Feb 19, 2014
How do I properly write a CASE statement for the following business logic:
I want three of the following fields to be true in order to return 'Y'.
For example:
If field name 'Accepted' = 1 AND field 'StepNo' = '1' and field 'Visit' = 'V1'
Otherwise, I want it to return 'N'.
I have tried the following code below and it is not working.
, CASE WHEN Accepted = '1' AND StepNo ='1' AND Visit ='V1'
THEN 'Y' ELSE 'N' END AS 'StatusQ (Col N)'
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Aug 21, 2007
I am trying to order by the field and direction as provided by input parameters @COLTOSORTBY and @DIR while using a CTE and assigning Row_Number, but am running into syntax errors.
Say I have a table called myTable with columns col1,col2,col3,
Here's what I'm trying to do
with myCTE AS
(
Select
col1
,col2
,col3
,row_number() over (order by
case when(@DIR = 'ASC') then
case when @COLTOSORTBY='col1' then col1 asc
when @COLTOSORTBY='col2' then col2 asc
else col3 asc
end
else
case when @COLTOSORTBY='col1' then col1 desc
when @COLTOSORTBY='col2' then col2 desc
else col3 desc
end
end
from myTable
)
Please let me know what i can do with minimal code repetition and achive my goal of dynamically sorting column and direction. I do not want to use dynamic SQL under any circumstance.
Thanks.
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Oct 18, 2014
I have the following data:
Name Played Won
Player 1 15 14
Player 2 15 5
Player 3 14 13
Player 4 14 1
I want to be able to order by the number of games won by the highest played. So in the example above, I would get:
Name Played Won
Player 1 15 14
Player 3 14 13
Player 2 15 5
Player 4 14 1
How can I achieve that?
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Nov 20, 2000
I am familiar with the ALTER TABLE syntax that can be used to add columns to an existing table, but the columns are appended to the end of the table. Enterprise Manager allows you to insert a column in the desired place in the table, but I suspect that behind the scenes it creates a temp table with the new structure, drops the old version of the table and renames the temp table to the orginal table name (I could be wrong on this).
Is there a way to insert a new column in a specific place in a table using SQL rather than EM?
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Jun 19, 2013
I want to make an index with the following columns, actually together they constitute the PK of the table so the index is created automatically.
The question is witch sort order is the best to have if I want to fetch all rows for one date and one resource? And why?
WHERE Resource = "Car 1" AND Date = "2013-03-03"
Resource, Date, Time
Or
Date, Time, Resource
Below is an example with tree resources, but in reality there can be a lot more and also years of dates.
Car 1, 2013-03-03, 10.00
Car 1, 2013-03-03, 11.00
Car 1, 2013-03-03, 12.00
Car 1, 2013-03-04, 10.00
[Code] ......
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May 20, 2008
Is there a dynamic management view or system procedure which I can use to find out what columns are in an index, what columns are as an INCLUDE in the index and whether or not the column(s) are ascending or descending. This is excluding the utilities I already know about below:
sys.indexes
sys.index_columns
sp_helpindex
dm_db_index_physical_stats
dm_db_index_operational_stats
I only ask because it is a pain to look through the sys.indexes and sys.index_columns tables every time I want to know about what columns are in the index created. I also know that scripting the index would give me the information I need but there must be a better way.
Many Thanks
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Oct 8, 2007
Hi, I am using MS SQL Server 2005 9.00.1399.00. I am trying to make a PivotReport.
Everything is fine, but the columns are are ordered alphabetically, but i want that they are ordered in a specific way.
So i just created a new column ProcId in the Query, but how can i order the columns with the new column but display the other values.
i hope you understand what i mean!?
thanks
Philipp
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May 24, 2008
Hi
I am using a OLE_DB component source which connects to sqlserver and runs a query and the output of the query is written to a flat file destination.
Something like this
SELECT col1,
col2,
col3,
col4
FROM my_table
when i check in the mapping i see
col2 ------col2
col4-------col4
col3-------col3
...........
and thats what gets written to the flatfile destination.
i want SSIS to preserve the column order and write it as col1,col2,col3,col4
instead of what is happening now and it gets written as col2,col4,col3....
i am running sql2k5 and SSIS with sp2
is this a bug is there a solution for this or change the order of the columns for the flat file destination
regards
Hrishy
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Aug 27, 2007
Hi Everyone,
I am trying to do a query where I need to use as little C# as possible to build my gridview. Basically I have a column called statusID. There are about 15 options for this column but I only want to count certain ones. I want to count when statusID = 3 and output that into a column called "fullUnitsUsed" but when the value is 4 or > 13 I want it to count and put the result into a column called "halfUnitsUsed". I also want it to count based on the month. To accomplish this I have used CASE and GROUP BY. This has worked to some extent. Currently if I COUNT for one month I get the correct number of fullUnitsUsed and halfUnitsUsed used for January. Unfortunately the query returns 2 records for the month. The first one has a value for fullUnitsUsed and halfUnitsUsed is NULL, the second record has fullUnitsUsed as NULL and halfUnitsUsed has the correct value. I was hoping to output one record where both fullUnitsUsed and halfUnitsUsed have data. My other problem is that if I test for the entire year (which is what this query is supposed to do) there are 5 records returned for each month, 3 of the records have fullUnitsUsed and halfUnitsUsed both as NULL and for the other 2, one has fullUnitsUsed with data and the other has halfUnitsUsed with data and the other column in both records is NULL. The values for fullUnitsUsed and halfUnitsUsed are counted for the entire year as well, which I only want it to count based on each month. Below is my query, any suggestions about how to approach this will be greatly appreciated. If any clarification is needed please let me know. Again if I could get this to work completely with SQL and not need to use any more C# than I have to it would be preferable.
SELECT People.lastName + ', ' + People.firstName AS fullName, Property.Name, NYSDDSORegion.Description, OpenDays.[month], OpenDays.maxOpenDays,CASE Attend.statusID
WHEN 3 THEN COUNT(Attend.statusID)
END AS fullUnitsUsed,CASE Attend.statusID
WHEN 4 THEN COUNT(Attend.statusID)
WHEN 14 THEN COUNT(Attend.statusID)
WHEN 15 THEN COUNT(Attend.statusID)
WHEN 16 THEN COUNT(Attend.statusID)
WHEN 17 THEN COUNT(Attend.statusID)
WHEN 18 THEN COUNT(Attend.statusID)
WHEN 19 THEN COUNT(Attend.statusID)
WHEN 20 THEN COUNT(Attend.statusID)
END AS halfUnitsUsed
FROM Attend INNER JOIN People ON Attend.personID = People.personID
INNER JOIN Property ON Attend.propertyID = Property.propertyID
INNER JOIN NYSDDSORegion ON Property.RegionID = NYSDDSORegion.RegionID
CROSS JOIN OpenDays
WHERE (Attend.attendDate BETWEEN '1/1/2007' AND '12/31/2007')
GROUP BY Property.Name, People.lastName, NYSDDSORegion.Description, People.firstName, OpenDays.monthID, OpenDays.[month], OpenDays.maxOpenDays, Attend.statusID
ORDER BY Property.Name, fullName, NYSDDSORegion.Description
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Jun 14, 2001
Please help me, i want to know how to make sql server columns case sensitive for a login table.
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Oct 17, 2007
Hi,
I have a problem. I need to rename all columns of a database to uppercase. Since SQL SERVER 2005 does not support changing system tables is there a smooth way to do this? Has anyone ideas for a script? point me to the right direction.
I have found the stored procedure sp_rename which could be useful (or would it be better to alter the tables)...
So any help would be appriciated very much...
Regards
fb
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Sep 13, 2007
I am writing a fairly simple sql, and I would like to write something like
Code Snippet
select
firstname as firstname,
case
when firstname = 'Peter' then 'yes'
else
'no'
end as whatever
from
MyTable
where
whatever = 'yes'
And this should then select out the rows where column number 2 is 'yes'.
It doesn't work, and I have to copy the firstname = 'Peter' into the where clause.
But why?
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Oct 20, 2015
Is it possible to combine a CASE statement with two different columns to retrieve data into one result column? In one column it has multiple JobCode, but this needs to be divided. The only way I can see to do this is take the data from another column to get the results.Ex. JobCode - has one code for several job descriptions (there are about 30), but all within this code cannot have the same level of access. So I need to divide them out, and put them in one column for AccessLevel.
JobTitle - has one code for one job, (but there are over 100).I want to pull from both columns to get the results I need to assign appropriate access level in one column.
Case JobCode (they all have same job code, but everyone in this job code should not have same access)
When '45' Then '1' (Principal, Asst. Prin, or any Administrator, Counselors)
When '25' Then '2' (this could be teacher, etc. )
Case JobTitle (this is how access should be)
When '12345' Then '1' (this is Administration only)
[code]....
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Jul 20, 2005
According to BOL, columns in an ORDER BY clause do not have to be in the SELECTcolumn list unless the SELECT includes DISTINCT, or the UNION operator.Is this a SQL Server thing, or SQL standard behavior? That is, if I were to writeabsolutely pure SQL-92, must columns in the ORDER BY clause be present in the SELECTlist?
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