Question

i have 5 tables in my database with same table structure

am trying to select from all the tables with like keyword
then am getting an erro
the error is

Column 'TitleLine' in where clause is ambiguous

the query am executing is

select * from equitymarketnews,economynews,corporatenews,industrynews where TitleLine Like '%axis Bank%' OR StoryMain like '%axis Bank%';

can anyone tell me where am doing wrong ?

i know this can be done BY UNION
can anyone give me example ?

Answer 1

You probably don’t want to design your tables like that but when you have the same named column and it could refer to either table you need to do tableName.columnName to make mysql understand. For a union, just break each of them into its own select then union them together like so (all one statement)

select * from equitymarketnews where TitleLine Like '%axis Bank%' OR StoryMain like '%axis Bank%' 
UNION select * from economynews where TitleLine Like '%axis Bank%' OR StoryMain like '%axis Bank%' 
UNION select * from corporatenews where TitleLine Like '%axis Bank%' OR StoryMain like '%axis Bank%' 
UNION select * from industrynews where TitleLine Like '%axis Bank%' OR StoryMain like '%axis Bank%';

here is a good start on union