目前我有一个看起来像这样的查询:
select * from person
where person.firstname LIKE '%firstname_fragment%' OR
person.lastname LIKE '%lastname_fragment%'
您如何将这两列连接到一个 SQL WHERE 谓词中,而该谓词则执行类似的操作?
person.firstname + person.lastname LIKE '%firstname_fragment
lastname_fragment%'