Example of advanced usage of DB2 SELECT statements

The following articles mainly describe the advanced usage of the DB2 SELECT statement. First, we will explain it from the creation result table. The following is a detailed description of the article, we hope you will have a better understanding of the advanced usage of the DB2 SELECT statement after browsing.

Advanced usage of SELECT statements in DB2 databases:

1. Create a result table

 
 

  
  
create table new_table_name as  
  
  
(select * from table_name) definition only;  
 
 

2. Create a materialized query table MQT)

 
 

  
  
create table new_table_name as  
  
  
(select * from table_name)  
  
  
data initially deferred refresh deferred;  
  
  
refresh table new_table_name;  
 
 

Note: A materialized table is similar to a Query and does not actually form a table. The type is displayed as Query. But it can be used as a table.

3. Copy the table structure

 
 

  
  
create table new_table_name like table_name; 
 
 

The above content is an introduction to the advanced usage of the DB2 SELECT statement. I hope you will find some gains.

The above content describes the advanced usage of the DB2 SELECT statement, hoping to help you in this regard.