join

Left outer join fetch doesn't fill map collection properly (HQL)

I've got classes with mappings like this: @Entity public class CurrencyTable { @Id @GeneratedValue(strategy = GenerationType.SEQUENCE) private Long id; @Version @Column(nullable=false) private Timestamp version; @Column(length=32, unique=true) private String refCode; @OneToMany(mappedBy="currencyTab...

Custom joins entitys on Hibernate

We have a Hibernate based system with Annotations. Our entities have a custom property DELETED. We have to select non deleted entities with non deleted sub-entities. How can we can do it? Little sample for describe the situation: GenericEntity { ... @Basic @Column(name = DELETED) protected Boolean deleted = false; @...

Join 2 'threads' in javascript

If I have an ajax call off fetching (with a callback) and then some other code running in the meantime. How can I have a third function that will be called when both of the first 2 are done. I'm sure it is easy with polling (setTimeout and then check some variables) but I'd rather a callback. Is it possible? ...

hibernate auto join conditions

Hibernate persistence class: @Entity public class A { @OneToMany(mappedBy = "a") private Set<B> bSet = new HashSet<B>(); @Basic private boolean DELETED; } Class B also have a DELETED property. How can we process DELETED property during join automatically, for select only not deleted entities. May be with hel...

MySQL: "The SELECT would examine more than MAX_JOIN_SIZE rows"

I am using PHP and MySQL. In my program there is a select query involving joins. When I run it on localhost it's working fine but when I upload it on my server and try to execute it then it generates the following error: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET SQL_MAX_...

How do you do a join in LinqToSQL?

I have a data setup of the following form: State 1->n County 1->n City. Within my State object, I want to return all counties that contain at least one city with a population greater than p. Were I to write this in sql it would be: select distinct co.* from County co join City ci on ci.CountyID = co.ID where ci.Population > @p and co....

How can you do a full outer join in sqlserver 2005?

How can you do a full outer join in sqlserver 2005? Seems like there is full outer join in sqlserver 2008 but I need to do this in sqlserver 2005. In other words, I am merging two views based on the ACCTNUM col in both views (The views show aggregates so there is at most one ACCTNUM record in each view for each account) and I would ...

Can you do a count query inside another query and use the results?

Could I run the query: Select id, ( select count(*) from tableA as a where a.value < a.id ) from tableA as a where id < 5 and get the results I wanted. If not is there a way to do the same thing without having to do 2 querys? ...

Join two column with the same number of row

Hi all, I want to combine 2 tables into one. Let say I have: Table1 ID Name 1 A 2 B 3 C Table2 ID Name 4 D 5 E 6 F I want to make Table3 Name1 Name2 A D B E C F How can I do this in SQL Server? Any help is greatly appreciated. ...

Joining a set of ordered-integer yielding Python iterators.

Here is a seemingly simple problem: given a list of iterators that yield sequences of integers in ascending order, write a concise generator that yields only the integers that appear in every sequence. After reading a few papers last night, I decided to hack up a completely minimal full text indexer in Python, as seen here (though that ...

SQL multiple join on many to many tables + comma separation

I have these tables: media table - id int primary key, uri varchar. media_to_people - media_id int primary key, people_id int primary key people - id int primary key, name varchar, role int -- role specifies whether the person is an artist, publisher, writer, actor, etc relative to the media and has range(1-10) This is a many to many r...

Join without association in HQL

Lets say I have two tables(A, B) like: A {id, a, c} B {id, b, c} I have also their entities. I want to write an HQL so that the result set will be like (where A.c = B.c): (a1, b1, c1) (a2, b2, c2) (a3, b3, c3) ... Since on clauses are not supported by hibernate I am stuck and I don't know how to write the query. ...

Iterating an NHibernate join

This is the first time I've used NHibernate for a big project so bear with me. Basically, I need to run a search based on 5 fields. I want to display the results in a table. Here is a test I've written that basically gets all Clients that have Intakes with a Staff named "DII". When I run it, I get an error saying that some of the I...

How do I make DBIx::Class join tables using other operators than `=`?

Summary I've got a table of items that go in pairs. I'd like to self-join it so I can retrieve both sides of the pair in a single query. It's valid SQL (I think), the SQLite engine actually does accept it, but I'm having trouble getting DBIx::Class to bite the bullet. Minimal example package Schema; use parent 'DBIx::Class::Schema';...

Padding Empty Field in Unix Join Operation

I have two files where I want to perform union operation based on 1st column: file1.txt foo 1 bar 2 qux 3 file2.txt foo x qux y boo z The result I hope to get is like this: foo 1 x bar 2 - qux 3 y boo - z where the empty fields of column 1 is padded with "-". But why this join command doesn't work as I expected? $ join -a...

Ok dumb question time. Linq to SQL. Join.

I have two tables: Clients, and a join table that has user id, a foreign key to clients, and some other stuff. I want to do this SQL select TblClient.* from TblClient inner join tblUserClientProjJoin as b on TblClient.Client_ID = b.Client_FK where b.User_fk = 2 So getting a list of 'clients' that a specific user has access to. I w...

Adding redudant join conditions in Oracle results in a different plan

I have a common database joining situation involving three tables. One table, A, is the main table with a primary key named id. Tables B and C contain auxiliary data for entries and A, and each also has a column named id which is a foreign key pointing to A.id. Now, if I want all data from A, B and C in one query, I would write: SELECT ...

Joining by datetimefield SQL Server.

I have two tables that holds inforamtion for SKU. Log table has datetimefield 2008-10-26 06:21:59.820 the other table has datetimefield 2008-10-26 06:22:02.313 I want to include this datetime fields in join for these 2 tables. Is it possible to join to tables with datetime fields that has difference not more than 3 seconds? What is the ...

SCCM query: How to get Latest user-logon registration (if any) and display PC, IP, User, logontimestamp

Hi, I'm trying to create a SQL 2005 query to retrieve and combine records from 3 SCCM Data Views. The first view contains records of valid PC's; the second contains logon-information containing: PC-id, username, timestamp, etc; the third contains PC-id, IP-address. The 1stview only contains a single, nique record per PC; the 2nd view ca...

Join two data tables from different source databases in .NET?

How do you join two data tables from different source databases in .NET? Ideally, I can craft two queries manually and simply join on a single field. In this case, linked servers and scheduled imports are not an option. I've looked into the data relation object, but (correct me if I'm wrong) that only works for parent-child relationshi...