mysql convert column into row -


i have view created form multiple tables view structure is

id     col1     col2     col3     col4  101         b     b     null  102     c     f         g

and on (this sample)

i want create view like

id     col_name     value  101     col1      101     col2     b  101     col3     b  101     col4     null  102     col1     c  102     col2     f  102     col3      102     col4     g

and on

can 1 plzzz

maybe this:

select id,'col1' colname, col1 value table1 union select id,'col2' colname, col2 value table1 union select id,'col3' colname, col3 value table1 union select id,'col4' colname, col4 value table1

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