db2 right outer join

statement 8 queries are clearly different, and the results shown in statement 8 are difficult to understand. Therefore, it is recommended that when writing a connection query, on is followed only by the join condition, and the conditions for the intermediate table restrictions are written in the WHERE clause. Statement 9: Full outer join (

ORDERS O left OUTER joins CUSTOMERS C on c.id=o.customer_id and o.order_numberThe Results from statement 7 and statement 8 queries are clearly different, and the results shown in statement 8 are difficult to understand. Therefore, it is recommended that when writing a connection query, on is followed only by the join condition, and the conditions for the intermediate table restrictions are written in the

), right Outer Join (right Outer Join or right join), and full outer

Table TESTA,TESTB,TESTC, each with a, b two columns A B 001 10A 002 20A A B 001 10B 003 30B A B 001 10C 004 40C The connection is divided into two types: inner and outer connections. A INNER JOIN The inner connection, that is, the most

Recently, the company is recruiting people. My colleagues asked a few questions about database connection that I think the database can be applied ~Now I want to write about their functions here.Assume that the following table is used:One is the voting master table, and the other is the voter information table ~ Record the IP address of the voter and the corresponding voting type. The left-right connection is actually the result of our joint query. Wh

Inner join, full outer join, left join, right jionCombination of inner join tablesFull outer is connected to the same combination of two tables. Table A has data that table B does not h

Assume that the following table is used: One is the voting master table, and the other is the voter information table ~ Record the IP address of the voter and the corresponding voting type. The left-right connection is actually the result of our joint query. Which table prevails ~1: for example, right join or right