What are the operations performed on the DB2 database?

This article mainly describes the operations performed on the DB2 database, including getting the first 10 records, modifying the field length, and adding fields ), the following describes the operations on the DB2 database, including the top 10 operations, modifying the field length, and adding the field content. We hope this will be helpful for your future study.

Document category: Database

DB2 takes the first ten records, DB2 modifies the field length, DB2 adds the Field Method

DB2 takes the first 10 records

 
 

  
  
DB2 => select istop from news where id =370 fetch first 10 rows only  
 
 

DB2 Modify Field Length

 
 

  
  
DB2 alter table DB2admin.config alter cvalue set data type varchar(255)   
  
  
DB2 => alter table news alter AUTHOR set data type varchar(250)   
 
 

The DB20000I SQL command is successfully completed.

 
 

  
  
DB2 => describe table news  
 
 

Add a field in DB2

 
 

  
  
alter table table_name   
  
  
add column column_name data type varchar(250)  
 
 

The above content is the introduction of taking the top 10 DB2 database operations, modifying the field length, and adding fields). I hope you will get some benefits.

The above content is the introduction of taking the top 10 DB2 database operations, modifying the field length, and adding fields). I hope you will get some benefits.