db where var1=x AND var2=y AND var3=q

[Ruud]

I can't figure out how to solve a right query, what do I wrong?

sql query: 
DELETE FROM `tbl_resource` WHERE (`ID_resource`=".$var1."  AND `ID_veld`=".$var2." AND `type_resource`='P') LIMIT 1;

first try:
$db->delete("tbl_resource",
[ "AND", 
["ID_resource","=",$db->result()[0]->ID_papo], 
["ID_veld", "=", $lesblokId ],
["type_resource", "=", "P"]
]);

second try:
$db->delete("tbl_resource",
[ "AND", 
[ "AND",[
["ID_resource","=",$db->result()[0]->ID_papo], 
["ID_veld", "=", $lesblokId ]
], 
["type_resource", "=", "P"]
]
]);

[Ruud]

fallback scenario below used, but please let me know what's the best way to work ;-)

$db->query("DELETE FROM `tbl_resource` WHERE (`ID_resource`= ? AND `ID_veld`= ? AND `type_resource`='P') LIMIT 1;",[$papoId, $lesblokId]);

[mudmin]

What happens if you do
$db->query("DELETE FROM tbl_resource WHERE ID_resource = ? AND ID_veld= ? AND type_resource=? LIMIT 1",[$papoId, $lesblokId,'P']);

[mudmin]

And btw, table name is really tbl_resource not resource and the columns are ID_veld not veld right?

[Ruud]

And btw, table name is really tbl_resource not resource and the columns are ID_veld not veld right?

the normal query works (my second post-entry), but was wondering why it should not work like my try in a first manner.

but I understand it only works for two variables or isn't it so?

[mudmin]

Hi. Sorry. Pretty much all the devs have been away this weekend. Sorry for the slow response.

As far as the first vs second, I'll take another look. the way I wrote the query is shorter. In general if you can avoid the paranthesis and ` vs ' there are fewer chances for a mistake.

Ready for something that will change your life and I went 2 years without knowing? ...
After your query that doesn't work, you can just type
dump($db->errorInfo()); and you will get PDO's best guess as to what's wrong with your query. If you get some array with just 012, that means it worked as far as PDO/MySQL is concerned.

You can bind as many variables as you want with the ? thing if that's what you're talking about. And you really don't have to bind that P, like I moved from the query to the bound parameters, but I always do it in case I want to sub it out with a variable later.

I think the $db->delete only works with one parameter. I usually only use that with an ID. I like to write out my delete queries, personally.