mysql - Update Query Using strcmp result -

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i unsure how change select query update.

the select query is:

select if (strcmp( `player1`, `player2` ) >0, concat(player2, " - ", player1), pair) goodpair scores

the problem trying solve pairs field contains pair names not in same order. example "bill - dennis" , "dennis - bill" same pair appear in different records , want pair names "lesser" name first can count times particular duo found.

if more info needed, let me know.

thanks in advance.

bili

you can use least , greatest functions:

select   concat_ws(' - ', least(payer1,player2), greatest(player1,player2)) goodpair   scores

i prefer use concat_ws concatenate strings separator instead of concat in particular case same.

to create update query, use this:

update scores set   goodpair = concat_ws(' - ', least(payer1,player2), greatest(player1,player2))

if need swith player1 player2 in case player1 greater player2, use update query:

update score set player1=least(player1,player2),     player2=greatest(player1,player2)   player1>player2

fiddle here.


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