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Simple sql query that matches any database (MS SQL)

By : idleBishop
Date : July 31 2020, 09:00 PM
Any of those help I have some monitoring soft, that able to make to MS SQL DB. if the request was successful - monitoring system says "DB - Ok". If query was unsuccessful, DB - fail. , You don't need a table. You can just use:
code :
select 1 as x
select count(*)

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Simple SQL Query Help - Return Rows Where Criteria Matches ALL

By : user2338295
Date : March 29 2020, 07:55 AM
Any of those help How do I construct my query to return only the values that match a, b, AND c?
code :
SELECT Company 
from Table 
WHERE CompanyID in (
    select CompanyID 
    from Table
    WHERE FiscalYear in (2007,2008,2009) 
    group by CompanyID
    having count(distinct FiscalYear) = 3

MySQL keeping returning a row even though nothing is in database that matches query

By : Adam Li
Date : March 29 2020, 07:55 AM
Hope this helps Chances are, depending on what DB connection class you're using, that $query_check_homework only contains a pointer to a result set, and will always "==1", or "true", simply by virtue of not being false, or 0.
Instead, consider using a function which counts the number of results returned from a query:

database field value that matches to every query

By : user301445
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Are you looking for something like this? It won't perform well due to the ORs if you have a lot of rows.
code :
WHERE ( Cars.Make = 'Ford' OR Cars.Make = '*' )
AND   ( Cars.Model = 'Taurus' OR Cars.Model = '*' )
WHERE Cars.Make IN ('Ford','*')
AND   Cars.Model IN ('Taurus','*')

how to make a simple query that matches column values to a look-up then matches further columns if no match is found

By : Shelley Stancin
Date : March 29 2020, 07:55 AM
Any of those help This is a simplified version of a problem I have. Say I’ve got three variables all of the same type, in three columns of table1, and an id field. They are all codes. Mostly they map to variables (group identifyers say) contained in a look up in table2. I want to write a query that does the following:
code :
select t1.id, 
    coalesce(t21.class_group, t22.class_group, t23.class_group) class_group
from Table1 t1
left join Table2 t21 on t21.cat_code = t1.col1
left join Table2 t22 on t22.cat_code = t1.col2
left join Table2 t23 on t23.cat_code = t1.col3

How to query a database that matches a specific name in a foreign key?

By : Thiago Azevedo
Date : March 29 2020, 07:55 AM
wish helps you I have two tables in my database Student and Subject. And I made a relationship between the StudentID(primary key for student)and a foreign key for the subject. , try this !
code :
subjectquery = "select * from subject where StudentID=2011017997";
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