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I often find myself wanting to write an SQL query like the following:
SELECT body FROM node_revisions where vid = (SELECT vid FROM node WHERE nid = 4);
I know that there are joins and stuff you could do, but they seem to make things more complicated. ...
Started by Brian T Hannan on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
If in the....
Here is what a join would look like (fishy), you can continue to use a join and simply tack on another expression to the join condition.
Is small, I would use a subquery like yours rather than a join.
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Hey
I have been trying to get this working for quite a while now but it just doesn't seem to work, maybe it is is not even possible, what i am wanting to do is to perform a mysql join query using like, such as this example i found...
SELECT * FROM Table...
Started by David on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
SELECT * FROM Table1 INNER JOIN Table2 ON Table1.col LIKE CONCAT('%', Table2.col, '%')
MySQL does stringHow about this instead:
SELECT * FROM Table1, Table2 WHERE Table1.col LIKE '%'+Table2.col the performance of this join....
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I want to join a String[] with a glue string. Is there a function for this?
Started by Rosarch on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
A search for "java array join string glue" will give you....
Apache Commons Lang has a StringUtils class which has a join function which will join arrays", "!"}, ", ")
Generates the following String :
Hello, World, !
Not in core, no.
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Can/Should I use a LIKE criteria as part of an INNER JOIN when building a stored procedure/query? I'm not sure I'm asking the right thing, so let me explain.
I'm creating a procedure that is going to take a list of keywords to be searched for in a column...
Started by Dillie-O on
, 11 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
Performance will be depend on the actual server to do some dynamic SQL to generate... .
Because you want to query a set of keywords on the situation, just like all good programming problems.
It seems like you are looking for full-text search.
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I have 2 tables Employee and Company_Employee.
Employee: ID, FirstName
Company_Employee: ID, Company_ID, Employee_ID
I want to do a search by First Name. I was thinking my query would look like:
select FirstName, ID from Employee where FirstName LIKE ...
Started by Buffernet on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
From employee e join company_employee ce on e.id = ce.Employee_ID where e.FirstName like '%John%'
Something like this
SELECT * FROM Employee e INNER JOIN Company_Employee ce JOIN ON e.Id = ce.Id employee.id with ....
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I have following models
class Artist(models.Model): name = models.CharField(max_length=200, unique=True) photo = models.CharField(max_length=250) views = models.IntegerField() class Meta: verbose_name = "artist" ordering = ['-views'] def __unicode__(self...
Started by Mohamed on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Matching_songs = Song.objects.filter(Q(name__contains=keyword) | Q(lyrics__contains=keyword) | Q(artist__name__contains=keyword))
See Django docs on Q objects for more details
After 2 hours of digging and asking my self why I am not getting expected ... .
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I realize that this might be a duplicate question but this question is very specific to my skill set.
I'd like to join an open source software project. I'm an professional software developer and gradate student (M.S. in Software Engineering) and professionally...
Started by Frank on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
However, you can't just say "Hey, I want to join your project so here's some code I committed to your.
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I am trying to determine the performance of a piece of generated SQL that runs in SQL Server 2005.
It uses CROSS JOINS, but the conditionals tying the cross joined tables are in the where statement.
I previously thought that all cross joins that have ...
Started by jetimms on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Select companies.id, contacts.id from companies cross join contacts where contacts.companyid = companies.id select companies.id, contacts.id from....
And 'on' clauses during join operations, and i imagine the same is for cross joins.
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Are there any performance drawbacks in SQL to joining a table on a char (or varchar) value, as opposed to say joining on an integer value?
Started by Aaron F. on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
An integer....
No, as long as the datatypes are the same between the tables that you join of the join column.
What can make a difference is:
- If datatypes in your join-condition than in the other column.
No there is not (in Oracle).
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I've got the following request :
select * from tbA A, tbB B, tbC C, tbD D where A.ID=B.ID and B.ID2= C.ID2 and A.ID=D.ID and C.ID3=D.ID3 and B.ID4=D.ID4 and A.Foo='Foo'
I've heard several times that this join syntax is depreciated, and that I should use...
Started by Brann on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
It makes the logic clearer and is more consistent like this:
select * from a left....
Only in a sense that different OUTER JOIN workarounds (like (*) and (+) ) are deprecated of taste, but I like the JOIN keyword better.
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