left-join

MySQL Select Distinct with Left Join?

MySQL Select Distinct with Left Join?
I am trying to get a list ofcompany_id's that have no company-level notes. The company may, however, have location-level notes.company ------------------------- company_id name deleted 1 Foo 0 2 Bar 0 3 Baz 0 location ----------------------- location

Symfony 2 Doctrine LEFT JOIN

Symfony 2 Doctrine LEFT JOIN
I have 3 tables in DB: task_estimation_fields:CREATE TABLE `task_estimation_fields` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(45) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `name_UNIQUE` (`name`) ) ENGINE=InnoDB;task_estimations:CREATE TAB

LEFT OUTER JOIN to return specific data

LEFT OUTER JOIN to return specific data
I have 2 tables where one is a related table and the other is a base table. First one is class_has_student and the other is student. I need to return all related data of classes for a particular student in class_has_student and class information for

Null values with all types of OUTER-JOIN is it me or is this normal? using Oracle db11g

Null values with all types of OUTER-JOIN is it me or is this normal? using Oracle db11g
I got a problem with something and I don't know if the thing I am doing is right.. or deadly wrong.I am working with the outer-join concept. In my case with all the three of them. As I am typing my query's I get 50% viewable values en 50% null values

LINQ Left Outer JOIN Syntax Difference

LINQ Left Outer JOIN Syntax Difference
There are at least two ways of doing LEFT OUTER JOIN in LINQclass Customer { public int ID { get; set; } public string Name { get; set; } } class Order { public int ID { get; set; } public string Product { get; set; } } static void Main() { // Exampl

LEFT JOIN in SAS using PROC SQL

LEFT JOIN in SAS using PROC SQL
I am new to SAS and have this basic problem. I have a list of NYSE trading dates in table A as follows -trading_date 1st March 2012 2nd March 2012 3rd March 2012 4th March 2012 5th March 2012 6th March 2012I have another table B that has share price

HQL Left Outer Join for null column in one-to-one relation

HQL Left Outer Join for null column in one-to-one relation
Left outer join is supposed to get all data from left table no matter if there is matching record from B table, however if left tables right_id column is null, records cant be got.I am explaining moreIn Data model: Order.java, it is my LEFT table, th

Sybase 12 LEFT JOIN Performance issue for CrystalReports

Sybase 12 LEFT JOIN Performance issue for CrystalReports
I am trying to optimize a Crystal Report that is used very frequently here. I succeeded to optimize lots of queries but I still have one last bottleneck: This is the main query, generated from the report.SELECT A.*, B.*, C.*, D.*, E."N", F."

MySQL left joining subquery to group by

MySQL left joining subquery to group by
I have a requirement where I need o group data into equal number ob rows. As mysql doesn't haverownum()I'm simulating this behaviour:SET @row:=6; SELECT MAX(agg.timestamp) AS timestamp, MAX(agg.value) AS value, COUNT(agg.value) AS count FROM ( SELECT

Left outer join in SQL with data missing in right table

Left outer join in SQL with data missing in right table
I have the following database schema in a Mysql databaseUsersidnameAttendanceiduser_idchecked_on (date)Now for a given date range I want to build a report that lists a user and another column that says whether they were present on that day or not.I w

SQL Query to Retrieve Two Tables Related Many-to-Many-to-Many With Outer Joins

SQL Query to Retrieve Two Tables Related Many-to-Many-to-Many With Outer Joins
My SQL sense isn't working this morning and I need some help.I have 3 primary tables, with two intermediate tables between them used for many-to-many relationships:user,users_groups,group,groups_permissions, andpermission. Eachpermissionhas aname.I w

Outer join giving same results as inner join if using where clause

Outer join giving same results as inner join if using where clause
The following SQL statement:select * from employees e left join departments d on e.deptid = d.deptid where ( d.deptname = 'HR' or d.deptname = 'HR & Accounts')Produces the same results as the following inner join:select * from employees e inner join

MySQL joins and COUNT(*) from another table

MySQL joins and COUNT(*) from another table
I have two tables:groupsandgroup_members.Thegroupstable contains all the information for each group, such as its ID, title, description, etc.In thegroup_memberstable, it lists all the members who are apart of each group like this:group_id | user_id 1

Displaying mySQL LEFT JOIN with multiple matches in second table correctly

Displaying mySQL LEFT JOIN with multiple matches in second table correctly
Here's our DB setup:members:addresses:titles:And this is the output we need:Mr John Doe Msc A-1100 Vienna (A00025)Mrs Jamie Smith A-4040 Linz (A00026)Jack Jones A-5020 Salzburg (A00027)This is our mySQL statement so far:SELECT T1.member_id, T1.surnam

HQL left join of un-related entities

HQL left join of un-related entities
I have 2 entities,AandB. They are related but I do not want to add the relationship mapping to the beans.How can we useleft outer join betweenAandBusing HQL or criteria?There are some workarounds available for this,Use Native SQL as toldhere.Add a re

left join returnt duplicate data on right table and count returns wrong result

left join returnt duplicate data on right table and count returns wrong result
I have two table: imports and orders: I have attached these respectively.Which I want are: 1. all data of import table group by product id. 2. sum of pieces column of orders table for a product id. In my tables there are 3 rows in import table having

MySQL: Grouped/Ordered/Left Join query very slow

MySQL: Grouped/Ordered/Left Join query very slow
I have a problem with a query which takes far too long (Over two seconds just for this simple query).On first look it appears to be an indexing issue, all joined fields are indexed, but i cannot find what else I may need to index to speed this up. As

“Optional” WHERE clause on (My)SQL query

“Optional” WHERE clause on (My)SQL query
I'm having a bit of a problem with a SELECT query in MySQL and I'd be thankful for some pointers. Please feel free to point me towards an existing answer (if there is one and I missed it).The query is currently as follows:SELECT e.*, ie.aaa, ue.bbb,

Mysql GROUP BY in LEFT JOIN and ORDER BY

Mysql GROUP BY in LEFT JOIN and ORDER BY
I have this query which works fine$query = "SELECT beva_post.*, CONVERT_TZ(beva_post.date_published, '-00:00', '+00:00') as moment, beva_rubrique.titre_en, beva_user.image_user FROM beva_post LEFT JOIN beva_user ON beva_user.id_user = beva_post.id_us

SQL LEFT JOIN IS NULL over multiple columns

SQL LEFT JOIN IS NULL over multiple columns
I am using Microsoft Access 2007 and found that this SQL does not have theEXCEPToperator. I learned that I can useLEFT JOINandIS NULLto perform this operation. I almost have it but can't quite put my thumb on it.I have two tables, Table A has data of
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