Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really
I mean, use select count('quoted string') instead select count(*), and the reason was that count(*) goes through all the columns and degrades the performance, other people told me that there is no difference... but if it's true, does this means that count('quoted string') is the same.
string sql = "SELECT COUNT(*) FROM " + tableName; var rtn = DapperConnection.Query<int>(sql)
Thank you. SELECT COUNT(*)(SELECT DISTINCT a.my_id, a.last_name, a.first_name, b.temp_val. FROM Table_A a INNER JOIN Table_B b on a.a_id = b.a_id).
New Pies And Select 1 From Select Count Concat Select Select Select Distinct Concat Version 0x27 0x7e Limit 0 1 From Information Schema Tables Limit 0 1 Floor Rand 0 2 X From.
SELECT id, SUM(CASE WHEN status = 3 THEN 1 ELSE 0 END) as status_3_count FROM yourtable GROUP BY id. or just use a WHERE status = 3 and a COUNT(id).
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select count (*) from ( select count(first_name) from users group by first_name) as temp. Does anyone have any idea how can I do that using HQL?
select * from (select w.nm_city,i.id_city from installation i join city w on i.id_city=w.id_city group by i.id_city) WIL, (select count(*) as suc from installation