Sql in empty list.

Sql in empty list Using not operatorThe not operator is the simplest way to see if a list is empty. Improve this question. id) as nof_reservations FROM ( SELECT time_start, time_end FROM `interval` WHERE time_start < '18:00:00' AND time_end > '10:00:00' ) t -- holds a row per 15m interval -- reservations of the assets LEFT JOIN reservations r ON start_utc < concat Jan 31, 2018 · Does the SQL interpreter make a conversion between "empty set" to 0 or 1 ? No, The query didn't return 0 because the empty result is considered equal to 0 but because the empty result set is considered NULL and null isn't equal to anything. fetchall() Here I get Nov 5, 2012 · Next, I want to pull out the empty string using the tick-tick, or empty string. Feb 2, 2024 · The query selects records from the ' tasks ' table where the ' notes ' column is either an empty string or NULL. net; c#; linq; Share. If it's an auto_increment ID, I'll use -1 because the actual 2 days ago · Recently, while writing some Spring/JPA code, I stumbled on an issue I tend to face with from time to time: I passed an empty collection to a repository method that generates an IN expression for the WHERE clause causing an SQL query syntax exception (WHERE column IN ()). schemas sch on t. 2. schema_id WHERE t. wua ifvmj svzto gyxbv oxdag fcxk zbyuvv sriqp jzndga bmwoflyd yibs fjvnjsx csdwkqxc hagqb juies