Top "Left-join" questions

LINQ Inner-Join vs Left-Join

Using extension syntax I'm trying to create a left-join using LINQ on two lists that I have. The following is …

c# .net linq left-join

SQL LEFT-JOIN on 2 fields for MySQL

I have a view A and a view B. In A I have a lot of information about some systems, …

mysql sql join left-join

MySQL select rows where left join is null

I have these MySQL tables: table1: id | writer 1 | Bob 2 | Marley 3 | Michael table2: user_one | user_two 1 | 2 And this query: SELECT …

mysql sql join left-join

MySQL joins and COUNT(*) from another table

I have two tables: groups and group_members. The groups table contains all the information for each group, such as …

mysql count group-by left-join having

Linq to Sql: Multiple left outer joins

I'm having some trouble figuring out how to use more than one left outer join using LINQ to SQL. I …

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codeigniter active record left join

I have 3 mysql tables. Table 1 user id | name Table 2 emails id | email Table 3 user_email user_id | email_id I …

php codeigniter activerecord left-join

Using left join and inner join in the same query

Below is my query using a left join that works as expected. What I want to do is add another …

sql ms-access left-join inner-join

Difference between RIGHT & LEFT JOIN vs RIGHT & LEFT OUTER JOIN in SQL

What is the difference in results between: RIGHT JOIN and RIGHT OUTER JOIN LEFT JOIN and LEFT OUTER JOIN ? Can …

sql join left-join outer-join right-join

MySQL: How do I join same table multiple times?

I have two tables ticket and attr. Table ticket has ticked_id field and several other fields. Table attr has 3 …

mysql sql group-by left-join

Difference in MySQL JOIN vs LEFT JOIN

I have this cross-database query... SELECT `DM_Server`.`Jobs`.*, `DM_Server`.servers.Description AS server, digital_inventory.params, products.products_…

mysql query-optimization left-join inner-join