table_A table_B id,description id,description,id_table_A
id_table_A is a foreign key to the primary key of
table_A and is not mandatory.
table_A 1,some_desc_1 2,some_desc_2 table_B 1,some_desc_1,1 2,some_desc_2,2 3,some_desc_aaa,null 4,some_desc_bbb,null
I need to write a query that shows me all the records, including the records with the foreign key set to null. What type of join is this? I'm not able to show the records with null foreign key using an