db2 inner join

Take a look at the results of the left join and the right join with the Inner join and the full join to manipulate the table. Create a new two table in the database and insert the data you want to test. New table:[SQL]View PlainCopy Use [Test] GO /*****

The join syntax is as follows: select [field] from [Table Name 1] inner/left/right/full join [Table name 2] on [Table Name 1. field 1] [Table name 2. field 2] cross join: the product of the flute. without any constraints, the number of rows in a table is multiplied by the number of rows in another table. Left

Label:Original: http://blog.csdn.net/shadowyelling/article/details/7684714Left Join: Returns all the information in the table on the right and the information related to the left table conditionRight Join: Returns all of the information in the table in the list and information about the right table condition in the left tableInner Join: Returns information common

Differences between inner join, left JOIN, right join, outer join in SQLFor example, you'll know!Table A (A1,B1,C1) b (A2,B2)A1 B1 C1 A2 B201 Mathematics 95 01 Sheets Three02 Language 90 02 John Doe English Harry Select A.*, b.* from AINNER

Update Update Xxx Set Xxx Where As we all know about this writing, we found that update and delete support the update method of inner join, which is very useful for updating and deleting operations between tables. Column: SQLCode Update Tb_user Set Pass = '' From Tb_user USR Inner Join Tb_address ADDR

[Test @ ora1] SQL> select * From A; No. Name ---- ---------- 1000 Zhang San 2000 Li Si 3000 Wang Wu [test @ ora1] SQL> select * from B; product NO. ---- ---------- 1000 TV set 2000 video recorder 4000 bicycle [test @ ora1] SQL> set null Null Value -- Here I define null as [null value] [test @ ora1] SQL> select. *, B. * From a inner join B on. no. = B. no.; No. name No. Product ---- ---------- 1000 Zhang San

Label: Inner JOIN (equivalent connection) returns only rows that have the same join field in two tables Left join returns records containing all the records in the left table and the equivalent of the junction fields in the right table Right join returns records that contain

Label: INNER JOIN (equivalent join) returns only rows that have the same join field in two tables Left join returns records that include all the records in the left table and the equivalent of the junction fields in the right table Right

This article is reproduced in SQL using update inner join and delete inner join. Because the Update Connection statement is required when processing data in the project, the update inner join syntax is used. Here we repost the sta

Inner JOIN (equivalent connection) returns only rows that have the same join field in two tablesLeft join returns records containing all the records in the left table and the equivalent of the junction fields in the right tableRight join returns records that contain all the

Inner JOIN (equivalent connection) returns only rows that have the same join field in two tablesLeft join returns records containing all the records in the left table and the equivalent of the junction fields in the right tableRight join returns records that contain all the

Inner JOIN (equivalent connection) returns only rows that have the same join field in two tablesLeft join returns records containing all the records in the left table and the equivalent of the junction fields in the right tableRight join returns records that contain all the

INNER JOIN (equivalent join) returns only rows that have the same join field in two tablesLeft join returns records that include all the records in the left table and the equivalent of the junction fields in the right tableRight join