I'm trying to update a column with the concatenated and converted results of two other columns in order to create a column with a date field. The SELECT statement returns the values I want to Update with, but I'm missing something (probably simple) on the update. It won't execute because
"the subquery returns more than one value".
However, I don't want to update with the same value for each row, but rather the concatenated result for each row.
What am I missing?
UPDATE myTable
SET myDate =
(
SELECT
CONVERT (Date,(CONVERT (NVarchar, CreatedYear) + '-' + CONVERT (NVarchar, CreatedMonth) + '-' + '01') ,0)
FROM myTable
)
I believe you have an extra SELECT that is not required. Please try:
UPDATE myTable
SET myDate =
CONVERT (Date,(CONVERT (NVarchar, CreatedYear) + '-' + CONVERT (NVarchar, CreatedMonth) + '-' + '01') ,0)
FROM myTable
This is a bit more readable in my opinion:
UPDATE dbo.tblControlMaster SET AuditAddDate = CAST(CreatedYear AS NVARCHAR(4)) + '-' + CAST(CreatedMonth AS NVARCHAR(2)) + '-' + '01'
Related
I need to concatenate 2 ints and a varchar column into plan_no so it would look like this
Any help would be much appreciated.
We can try using CONVERT here to convert the numeric fields into text:
SELECT
CONVERT(varchar(10), lot) + '-' + forester + '-' +
CONVERT(varchar(10), year) AS plan_no
FROM yourTable;
If you want an update, then just use:
UPDATE yourTable
SET plan_no = CONVERT(varchar(10), lot) + '-' + forester + '-' +
CONVERT(varchar(10), year);
You need to do conversions :
select *, cast(lot as varchar(255)) + '-' +forester + '-' +cast([year] as varchar(5)) as plan_no
from table t;
You can alter your DDL :
alter table t
add plan_no as (cast(lot as varchar(255)) + '-' +forester + '-' +cast([year] as varchar(5)))
Edit :
update t
set plan_no = cast(lot as varchar(255)) + '-' +forester + '-' +cast([year] as varchar(5))
where plan_no is null;
I think you want to update data in your current table:
UPDATE TableName
SET plan_no = cast(lot as nvarchar(50)) + '-' + forester + '-' + cast([year] as nvarchar(50))
Please note: if lot, forester or year columns can contain nulls then you need to wrap values by ISNULL() function
I'll as brief as possible, but start by saying I'm a network guy, not a DBA.
SQL Server Enterprise 11.0.5343
Scenario - Need to get three columns (each with a part of a date) together, and then update another table with the full date.
Source table: UT210AP
Columns:
UTONMM (Utility On Month - 2 digit)
UTONDD (Utility On Day - 2 digit)
UTONYY (Utility On Year - 2 digit)
UTONCV (Utility On Century - 0 = 19xx, 1 = 20xx)
I can select the data into a "date" with this code (the source data is on an IBM AS/400 linked server)
CAST(UTONMM as varchar) + '/' +
CAST(UTONDD as varchar) + '/' +
CASE WHEN UTONCV = '1'
THEN
RIGHT('20' + CONVERT(varchar(4), RIGHT('00' + CONVERT(varchar(4),UTONYY),2)),4)
ELSE
RIGHT('19' + CONVERT(varchar(4), UTONYY),4)
END AS UTON
And I get these results in the column I named "UTON":
4/6/1994
7/1/1988
11/14/1990
6/6/2014
QUESTION:
I have a nightly import job that runs, and I need to get the "date" (like 4/6/1994) into a field called TIME_CONNECT as part of this update statement from the job:
Update [responder].[Temp_RX_CUSTOMERS]
set CustomerID = lf.UTCSID
from [responder].[Temp_RX_CUSTOMERS] LEFT Outer Join
[HTEDTA].[THOR].[HTEDTA].UT210AP lf ON [responder].[Temp_RX_CUSTOMERS].LocationID = lf.UTLCID
where lf.UTOFMM = 0
The "UTOFMM" in the code above is "Utility Off Month", I don't even care about checking for it's value, I just want to get the "UTON" date from the top select statement into the "TIME_CONNECT" field in the "Temp_RX_CUSTOMERS" field.
Is this what you want? This copies the value into the field, assuming time_connect is a string.
Update [responder].[Temp_RX_CUSTOMERS]
set CustomerID = lf.UTCSID,
time_connect = (CAST(UTONMM as varchar) + '/' +
CAST(UTONDD as varchar) + '/' +
(CASE WHEN UTONCV = '1'
THEN RIGHT('20' + CONVERT(varchar(4), RIGHT('00' + CONVERT(varchar(4),UTONYY),2)),4)
ELSE RIGHT('19' + CONVERT(varchar(4), UTONYY),4)
END)
)
from [responder].[Temp_RX_CUSTOMERS] LEFT Outer Join
[HTEDTA].[THOR].[HTEDTA].UT210AP lf
ON [responder].[Temp_RX_CUSTOMERS].LocationID = lf.UTLCID
where lf.UTOFMM = 0;
If time_connect is a date/datetime data type, you can use datefromparts() (available in SQL Server 2012+):
Update [responder].[Temp_RX_CUSTOMERS]
set CustomerID = lf.UTCSID,
time_connect = DATEFROMPARTS(1800 + UTONCV * 100 + UNONYY,
UTONMM, UTONDD)
from [responder].[Temp_RX_CUSTOMERS] LEFT Outer Join
[HTEDTA].[THOR].[HTEDTA].UT210AP lf
ON [responder].[Temp_RX_CUSTOMERS].LocationID = lf.UTLCID
where lf.UTOFMM = 0;
I have a table with the following columns, City, State, Zip, and Zone.
I want to update Zone with City - State - Zip with hyphens.
Is there a way to do this in SQL without grabbing all the records and iterating through the results and doing an update statement for each one?
You should be able to do the following if I am not mistaken:
UPDATE [Table_Name] Set Zone = (City + '-' + State + '-' + Zip)
update table set zone = city + '-' + state + '-
+ Zip
Note if the datatypes are different you might need to do something like
update table set zone = cast(city as varchar(50)) + '-' + cast(state as varchar(50)) + '-
+ cast(Zip as varchar(50))
I have a funny case where a piece of data needed, is actually embedded in a column of data looking something like this:
note that is a shop with strong legacy mess still in place.
adlu201008270919_3.zip the date is what i need and is embedded.
I have code to do this here:
AND CAST(SUBSTRING(M.MDS_FILE,5,4) + '-' + SUBSTRING(M.MDS_FILE,9,2) + '-' + SUBSTRING(M.MDS_FILE,11,2) as datetime)
But now I find out that where you have here 'adlu' that is 4 pos. It can be 3 or 2 or 1.
So I have to code for that I have come up with this: but it's not compiling:
AND CASE WHEN WHEN CAST(SUBSTRING(M.MDS_FILE,5,4) + '-' + SUBSTRING(M.MDS_FILE,9,2) + '-' + SUBSTRING(M.MDS_FILE,11,2) as datetime)
ELSE WHEN OEN.LENGTH(S.FACILITY_KEY) = 3 THEN CAST(SUBSTRING(M.MDS_FILE,4,4) + '-' + SUBSTRING(M.MDS_FILE,8,2) + '-' + SUBSTRING(M.MDS_FILE,10,2) as datetime)
ELSE WHEN OEN.LENGTH(S.FACILITY_KEY) = 2 THEN CAST(SUBSTRING(M.MDS_FILE,3,4) + '-' + SUBSTRING(M.MDS_FILE,7,2) + '-' + SUBSTRING(M.MDS_FILE,9,2) as datetime)
ELSE CAST(SUBSTRING(M.MDS_FILE,2,4) + '-' + SUBSTRING(M.MDS_FILE,6,2) + '-' + SUBSTRING(M.MDS_FILE,8,2) as datetime) END
CASE requires an evaluation. Your first statement just says WHEN(a bunch of conversions) but there's never an evaluation (=, <, > etc).
I'm assuming you want that to be AND CASE WHEN OEN.LENGTH(s.FACILITY_KEY) = 4 THEN ...
Instead of a CASE statement based of S.FACILITY_KEY, I would use PATINDEX to dynamically find the start position of the date string that you're looking for:
DECLARE
#TestValue1 VARCHAR(50),
#TestValue2 VARCHAR(50),
#TestValue3 VARCHAR(50),
#TestValue4 VARCHAR(50)
SET #TestValue1 = 'adlu201008270919_3.zip'
SET #TestValue2 = 'adl201008270919_3.zip'
SET #TestValue3 = 'ad201008270919_3.zip'
SET #TestValue4 = 'a201008270919_3.zip'
SELECT CAST(SUBSTRING(#TestValue1, PATINDEX('%[1-2][0-9][0-9][0-9][0-9][0-9][0-9][0-9]%', #TestValue1), 8) AS DATETIME)
SELECT CAST(SUBSTRING(#TestValue2, PATINDEX('%[1-2][0-9][0-9][0-9][0-9][0-9][0-9][0-9]%', #TestValue2), 8) AS DATETIME)
SELECT CAST(SUBSTRING(#TestValue3, PATINDEX('%[1-2][0-9][0-9][0-9][0-9][0-9][0-9][0-9]%', #TestValue3), 8) AS DATETIME)
SELECT CAST(SUBSTRING(#TestValue4, PATINDEX('%[1-2][0-9][0-9][0-9][0-9][0-9][0-9][0-9]%', #TestValue4), 8) AS DATETIME)
I'm just starting to learn T-SQL and could use some help in understanding what's going on in a particular block of code. I modified some code in an answer I received in a previous question, and here is the code in question:
DECLARE #column_list AS varchar(max)
SELECT #column_list = COALESCE(#column_list, ',') +
'SUM(Case When Sku2=' + CONVERT(varchar, Sku2) +
' Then Quantity Else 0 End) As [' +
CONVERT(varchar, Sku2) + ' - ' +
Convert(varchar,Description) +'],'
FROM OrderDetailDeliveryReview
Inner Join InvMast on SKU2 = SKU and LocationTypeID=4
GROUP BY Sku2 , Description
ORDER BY Sku2
Set #column_list = Left(#column_list,Len(#column_list)-1)
Select #column_list
----------------------------------------
1 row is returned:
,SUM(Case When Sku2=157 Then Quantity Else 0 End) As [157 -..., SUM(Case ...
The T-SQL code does exactly what I want, which is to make a single result based on the results of a query, which will then be used in another query.
However, I can't figure out how the SELECT #column_list =... statement is putting multiple values into a single string of characters by being inside a SELECT statement. Without the assignment to #column_list, the SELECT statement would simply return multiple rows. How is it that by having the variable within the SELECT statement that the results get "flattened" down into one value? How should I read this T-SQL to properly understand what's going on?
In SQL Server:
SELECT #var = #var + col
FROM TABLE
actually concatenates the values. It's a quirks mode (and I am unable at this time to find a reference to the documentation of feature - which has been used for years in the SQL Server community). If #var is NULL at the start (i.e. an uninitialized value), then you need a COALESCE or ISNULL (and you'll often use a separator):
SELECT #var = ISNULL(#var, '') + col + '|'
FROM TABLE
or this to make a comma-separated list, and then remove only the leading comma:
SELECT #var = ISNULL(#var, '') + ',' + col
FROM TABLE
SET #var = STUFF(#var, 1, 1, '')
or (courtesy of KM, relying on NULL + ',' yielding NULL to eliminate the need for STUFF for the first item in the list):
SELECT #var = ISNULL(#var + ',', '') + col
FROM TABLE
or this to make a list with a leading, separated and trailing comma:
SELECT #var = ISNULL(#var, ',') + col + ','
FROM TABLE
You will want to look into the COALESCE function. A good article describing what is happening can be seen here.