我需要多次检查取值范围,直到现在我都是这样做的:$preischeck = mysql_query("SELECT preis FROM outfits WHERE aktiv = 'ja' and preis <= 100 $marke $farbe"); echo "0 - 100 is there";?php
$preischeck =
如何提取作为json存储在字段中的值。customerId当前存储在juniferResponse字段中,如{"customerId":1}SELECT json_extract(juniferResponse, '$.customerId') AS cid FROM enrolment WHERE juniferResponse IS_NOT_NULL;
我需要从非空或空字段的juniferResponse中提取值