Mysql query search a string in all columns of a table

Question

I wonder how I can mount a SQL as portable as possible to query for all columns of a table for a specific phrase, like:

Table

ID | Name          


        

Answer 1

you can use this store procedure to search a text in all column in table

CREATE PROCEDURE dbo.sp_FindStringInTable @stringToFind VARCHAR(100), 
@schema 
sysname, @table sysname 
AS

BEGIN TRY
DECLARE @sqlCommand varchar(max) = 'SELECT * FROM [' + @schema + '].[' + 
@table + '] WHERE ' 

SELECT @sqlCommand = @sqlCommand + '[' + COLUMN_NAME + '] LIKE ''' + 
@stringToFind + ''' OR '
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE TABLE_SCHEMA = @schema
AND TABLE_NAME = @table 
AND DATA_TYPE IN ('char','nchar','ntext','nvarchar','text','varchar')

SET @sqlCommand = left(@sqlCommand,len(@sqlCommand)-3)
EXEC (@sqlCommand)
PRINT @sqlCommand
END TRY

BEGIN CATCH 
PRINT 'There was an error. Check to make sure object exists.'
PRINT error_message()
END CATCH 

Execute it like this

EXEC sp_FindStringInTable '%searchword%','schema_name', 'tablename'

Answer 2

try this

   Select * FROM table WHERE text LIKE "%text%"
                          OR date LIKE "%2010%"
                          OR Name LIKE "%augusto%"

if you want them all together then use AND

   Select * FROM table WHERE text LIKE "%text%"
                          AND date LIKE "%2010%"
                          AND Name LIKE "%augusto%"

Answer 3

It's doable, although I strongly suggest you look into full-text search for efficiency;

To avoid looking for all patterns in all fields one by one, you can just concat and search in that;

SELECT *
FROM (SELECT id,CONCAT(name,'|',text,'|',date,'|',author,'|',status) txt
      FROM Table1) a
WHERE txt LIKE '%augusto%'
  AND txt LIKE '%2010%'
  AND txt LIKE '%text%';

Note that no indexing will help you here, since you're searching in a calculated column. On the other hand, since you're searching with a leading wildcard %searchterm, you won't get much help from indexes even if searching field by field :)

An SQLfiddle to test with.

Answer 4

Here is how you would concatenate the values in dynamic SQL:

set @Pattern = '%augusto%';

select @q := concat('select * from Table1 ',
                   'where concat(', group_concat(column_name), ', "") like "', @Pattern, '"'
                   )
from information_schema.columns c
where table_name = 'Table1';

prepare st from @q;
execute st;

deallocate prepare st;

Of course, dynamic SQL is not particularly portable. The idea would work in most databases. The code would look different.

Tested and working here.

And finally, you can do this with variable substitution (which is the better approach):

select @q := concat('select * from Table1 ',
                   'where concat(', group_concat(column_name), ', "") like ?'
                   )
from information_schema.columns c
where table_name = 'Table1';

set @p = '%augusto%';

prepare st from @q;
execute st using @p;

deallocate prepare st;

Also tested (;-).