Top "Left-join" questions

How to make a "distinct" join with MySQL

I have two MySQL tables (product and price history) that I would like to join: Product table: Id = int Name = …

mysql join distinct left-join subquery

How to limit results of a LEFT JOIN

Take the case of two tables: tbl_product and tbl_transaction. tbl_product lists product details including names and ids …

mysql sql subquery left-join mysql-error-1054

MYSQL Left Join COUNTS from multiple tables

I want to add columns that represent counts from other tables. I have 3 tables. Messages MessageID User Message Topic 1 Tom …

mysql count left-join

Delete from one table with join

I'm trying to delete records from one database based on a selection criteria of another. We have two tables, emailNotification …

mysql left-join sql-delete

HQL left join of un-related entities

I have 2 entities, A and B. They are related but I do not want to add the relationship mapping to …

java hibernate hql left-join

LEFT JOIN on Max Value

Suppose I have the following two tables: STUDENT studentid lastname firstname 1 Smith John 2 Drew Nancy STUDENT_STORY studentid dateline storyid …

mysql left-join

MySQL Left join WHERE table2.field = "X"

I have the following tables: pages: +------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+--------------+…

mysql join left-join

Are the SQL concepts LEFT OUTER JOIN and WHERE NOT EXISTS basically the same?

Whats the difference between using a LEFT OUTER JOIN, rather than a sub-query that starts with a WHERE NOT EXISTS (...)?

sql database join left-join

Left join with condition

Suppose I have these tables create table bug ( id int primary key, name varchar(20) ) create table blocking ( pk int primary …

mysql sql tsql left-join

JOIN (SELECT ... ) ue ON 1=1?

I am reading an SQL query in Redshift and can't understand the last part: ... LEFT JOIN (SELECT MIN(modified) AS …

sql postgresql join left-join amazon-redshift