I have a query like this:
SELECT Name,
REPLACE(RTRIM((
SELECT CAST(Score AS VARCHAR(MAX)) + ' '
FROM
(SELECT Name, Score
FROM table
WHERE
---CONDITIONS---
) AS InnerTable
WHERE (InnerTable.Name = OuterTable.Name) FOR XML PATH (''))),' ',', ') AS Scores
FROM table AS OuterTable
WHERE
---CONDITIONS---
GROUP BY Name;
As it can be seen, I am using the same set of conditions to derive the InnerTable and OuterTable. Is there a way to shorten this query? I am asking this because, sometime back, I saw a keyword USING in MySQL that simplified my life using which you can specify a query once and then use its alias for the rest of the query.
You could look at creating a Common Table Expression (CTE). That is your best bet for aliasing a select. Unfortunately I'm not sure how much shoerter it will make your query though it does prevent you from defining the where conditions twice. see below:
with temp as
(
SELECT Name, Score
FROM table
WHERE whatever = 'whatever'
)
SELECT Name,
REPLACE(RTRIM((
SELECT CAST(Score AS VARCHAR(MAX)) + ' '
FROM
(SELECT Name, Score
FROM temp ) AS InnerTable
WHERE (InnerTable.Name = OuterTable.Name) FOR XML PATH (''))),' ',', ') AS Scores
FROM temp AS OuterTable
GROUP BY Name;
Related
I have a table in BigQuery with hundreds of columns, and it just happens that I want to select all of them except for those that begin with an underscore. I know how to do a query to select the columns beginning with an underscore using the INFORAMTION_SCHEMA.COLUMNS table, but I can't figure out how I would use this query to select the columns I want. I know BigQuery has EXCEPT but I want to avoid writing out each column that begins with an underscore, and I can't seem to pass to it a subquery or even something like a._*.
Consider below approach
execute immediate (select '''
select * except(''' || string_agg(col) || ''') from your_table
'''
from (
select col
from (select * from your_table limit 1) t,
unnest([struct(translate(to_json_string(t), '{}"', '') as kvs)]),
unnest(split(kvs)) kv,
unnest([struct(split(kv, ':')[offset(0)] as col)])
where starts_with(col, '_')
));
if apply to table like below
it generates below statement
select * except(_c,_e) from your_table
and produces below output
I have a table like this:
I want to concatenate the Product name in the given Product_order by ID.
Therefore, I should get something like: CC-TC-CA for ID 1.
you can use string_agg()- it'll work sql server 2016+
select id, string_Agg(product,',') as pname
from tablename
group by id
OR you can use stuff()
SELECT id,
STUFF((SELECT ',' + product
FROM tablename AS T1
WHERE T1.id = T2.id
FOR XML PATH('')), 1, 1, '')
FROM tablename AS T2
GROUP BY id
If you can use a stored procedure instead of a single query the += operator can do what you're looking for.
DECLARE #Product_order VARCHAR(100) = '';
SELECT #Product_order += Product + '-' FROM [table] WHERE id = 1 ORDER BY Product_Order;
SELECT SUBSTRING(#Product_order, 0, LEN(#Product_order));
Update: I've learned that returning multiple rows and using in an assignment in the select clause is unsupported behavior in SQL Server.
I have a table that save personnel code.
When I select from this table I get 3 rows result such as:
2129,3394,3508,3534
2129,3508
4056
I want when create select result combine in one row such as:
2129,3394,3508,3534,2129,3508,4056
or distinct value such as:
2129,3394,3508,3534,4056
You should ideally avoid storing CSV data at all in your tables. That being said, for your first result set we can try using STRING_AGG:
SELECT STRING_AGG(col, ',') AS output
FROM yourTable;
Your second requirement is more tricky, and we can try going through a table to remove duplicates:
WITH cte AS (
SELECT DISTINCT VALUE AS col
FROM yourTable t
CROSS APPLY STRING_SPLIT(t.col, ',')
)
SELECT STRING_AGG(col, ',') WITHIN GROUP (ORDER BY CAST(col AS INT)) AS output
FROM cte;
Demo
I solved this by using STUFF and FOR XML PATH:
SELECT
STUFF((SELECT ',' + US.remain_uncompleted
FROM Table_request US
WHERE exclusive = 0 AND reqact = 1 AND reqend = 0
FOR XML PATH('')), 1, 1, '')
Thank you Tim
I created this CTE that returns first and last names from 2 different tables. I would like to use the CTE to identify all of the records that have the same last names and the first name of one column starts with the same first letter of another column.
This is an example of the results of the CTE. I want the SELECT using the CTE to return only the highlighted results:
;WITH CTE AS
(
SELECT AD.FirstName AS AD_FirstName, AD.LastName AS AD_LastName, NotInAD.FirstName As NotInAD_FirstName, NotInAD.LastName As NotInAD_LastName
FROM PagingToolActiveDirectoryUsers AD JOIN
(
SELECT FirstName, LastName
FROM #PagingUsersParseName
EXCEPT
SELECT D.FirstName, D.LastName
FROM PagingToolActiveDirectoryUsers D
WHERE D.FirstName <> D.LastName AND D.LastName <> D.LoginName
AND D.LoginName LIKE '%[0-9]%[0-9]%'
) AS NotInAD ON NotInAD.LastName = AD.LastName
)
SELECT *
FROM CTE
WHERE (AD_LastName = NotInAD_LastName) AND (AD_FirstName LIKE ('''' + SUBSTRING(NotInAD_FirstName, 1, 1) + '%'''))
ORDER BY AD_LastName, AD_FirstName;
The result of this query returns no rows.
What am I doing wrong?
Thanks.
You're enclosing the string to be searched for with single-quotes, but it doesn't appear that the data in AD_FirstName has those single-quotes embedded in it. I suggest you replace the first line of the WHERE clause with
WHERE (AD_LastName = NotInAD_LastName) AND (AD_FirstName LIKE (SUBSTRING(NotInAD_FirstName, 1, 1) + '%'))
Best of luck.
I have a query that has multiple union statements where the last union statements results are derived from a function. I want to know how to sort the resultset based on the vchLastName of the function results. Here is the basis of the stored procedure.
select ID, objtype, Descr=coalesce(v.acctName, x.Descr), x.ihhid
from (
-----select statements----
UNION ALL
SELECT
pn.iPartyID,
'CONTACT',
ISNULL(vchFirstName,'') + ' ' + ISNULL(vchLastName,'') + ' ' +
CASE WHEN vchGoesBy IS NOT NULL THEN '(' + vchGoesBy + ')' ELSE ISNULL(vchGoesBy,'') END,
pn.iHHID
FROM CRM.dbo.cfn_PartyNameSearch(1, 'test') pn
WHERE pn.cPartyType = 'C'
)
x left join tableName v on v.id = x.id
and x.ObjType='ACCOUNT'
I want to sort by the pn.vchLastName for CONTACT. the other results sorting isn't a big deal honestly, and I am not able to edit the function that gives the results.
This general idea will work. You can work out the details
select 2 sortfield1
, whatever aliasName
from etc
union all
select 1 sortfield1
, yourFunctionResult aliasName
from etc
order by sortfield1, aliasName
Ordering takes place towards the end of the query execution, at least after all the data has been selected. Therefore you will have to order the entire result set at the end of the query. IIRC there is not conditonal ordering in T-SQL.