mysql - Update data from one table to another -


i have small problem updating rows of 1 table data one, please help.

table l columns 

make model oemnumberlatest oemnumberprevious cstockcode cdescription

the 2 columns cstockcode,cdescription blank @ moment , waiting populated, , second table c columns stockcode , description

the question how move/copy contents of table c rows of table l?

where c.stockcode = l.oemnumberlatest , or c.stockcode = l.oemnumberprevious

you shouldn't move contents of 1 table other. better values when need them, using join:

select l.*, c.cstockcode, c.cdescription table1 l join      c      on c.stockcode = l.oemnumberlatest or c.stockcode = l.oemnumberprevious;

this seems strange condition, or because can multiple matches.

in case, can convert update easily:

update table1 l join        c        on c.stockcode = l.oemnumberlatest or c.stockcode = l.oemnumberprevious     set l.cstockcode = c.cstockcode,         l.cdescription = c.cdescription;

when both conditions match, 1 arbitrarily used update.


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