Mysql batch modify table fields to uppercase

Original address: https://blog.csdn.net/csd_nuser/article/details/110038516

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Mysql batch modify table fields to uppercase

One, query all tables

SELECT 

CONCAT('ALTER table ',sc2.table_schema,'.',sc2.table_name,' CHANGE ',' \`',sc2.column_name,'\` \`',UPPER(sc2.column_name),'\` ',  
sc2.column_type,

' ',

CASE WHEN

sc2.is_nullable='NO'

THEN 'not null'

ELSE 'null' END,' COMMENT ''',sc2.column_comment,''';') AS c  
FROM information_schema.tables sc, information_schema.columns sc2
 WHERE sc.table_schema = '你的数据库名'  
   AND sc.table_type = 'base table'  
   AND sc.table_schema = sc2.table_schema  

   AND sc.table_name = sc2.table_name  

Then execute the query results