I am trying to figure out how to select an item from table by his column name p.e.
strucutre looks like this
table items
id | name | column_1 | column_2 | column_3 |
1 | nm1 | 1 | 4 | 7,8 |
2 | nm2 | 2,3 | 4 | 9 |
3 | nm3 | 3,1 | 4 | 7 |
table columns
id | c_name |
1 | cnm1 |
2 | cnm2 |
3 | cnm3 |
table column_values
id | c_id | value |
1 | 1 | abcd |
2 | 1 | cdbh |
3 | 1 | dsff |
4 | 2 | wewe |
5 | 2 | cgbh |
6 | 2 | cdlh |
7 | 3 | adbh |
8 | 3 | qdbh |
9 | 3 | pdbh |
So when I wanted to find "abcd" I tried
"SELECT a.* FROM items a, columns b, column_values c WHERE c.`value` LIKE '%abcd%' GROUP BY a.`id`"
but I knew this will find nothing without any conections so i went further
"SELECT a.* FROM items a, columns b, column_values c WHERE c.`value` LIKE '%abcd%' AND b.`id` = c.`c_id` GROUP BY a.`id`"
still no proper connection with item
and here is the problem there is a changing amount of columns and the name contains id of the column and value is set of ids of column values.
So i need to select item by his name which is "name+"column_id in column_values by FIND IN SET cause if i look for abcd it is id 1 and there are two items which have id 1 in column_1
item 1 and item 2
ALSO id of values are AI so there is not possibility of duplicate so there is no need to check of column_id to search in proper column in item table
it can work something like for from 0 - 30 p.e. and it will search in column_1, column_2 column_3 until 30 for id match
