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select count(distinct col1) + count(distinct case when col1 is null then 1 end) from YourTable.
Maybe user_id is null in some rows. "The COUNT(column_name) function returns the number of values (NULL values will not be counted) of the specified
SELECT m.id, m.name, m.description, m.directions, COUNT(j.markerid) as marker_jingles FROM markers AS m LEFT OUTER JOIN jingles AS j ON j.markerid=m.id WHERE 1. But am a bit stuck because I cannot figure out how to get it to return rows when the COUNT is 0.
I want to add rows from table installation combined with city table,the following table desired result.
(M): SELECT CONCAT(login, password) FROM members. 7. Строки без кавычек Есть несколько способов не использовать кавычки в запросе, например с помощью CHAR() (MS) и CONCAT() (M). Синтаксис: SELECT 0x457578 (M). В MySQL есть простой способ представления строки в...
select name1 as myname from myTable union select name2 as myname from myTable. But I can't find the right syntax for where the count goes.
Параметр функции COUNT-это выражение, которое должно быть вычислено для каждой строки. Функция count возвращает количество строк, для которых выражение принимает ненулевое значение. (*- это специальное выражение, которое не вычисляется, оно просто возвращает...
$qry_appr = "SELECT COUNT(*) FROM comments WHERE admin_panel_id ='$id' AND status = 'ON'"; $qry_data = mysqli_query($con, $qry_appr); $approve_count = mysqli_fetch_array($qry_data); $toatalCount = array_shift($approve_count); echo $toatalCount; This will also fine but this is do what...
SELECT is used to retrieve rows selected from one or more tables, and can include UNION statements and subqueries.