Google Переводчик
Бесплатный сервис Google позволяет мгновенно переводить слова, фразы и веб-страницы с английского на более чем 100 языков и обратно.
sql injection "union select null" - CodeProject
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 know how it works can somebody help me...
Confusing SQL error in SELECT NULL, *, NULL, NULL - Stack Overflow
UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why
sql - Union to handle NULL values - Stack Overflow
select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null
null null null;null null null;null null null;null null null - YouTube
Опубликовано: 14 февр. 2018 г. null;null. Категория. Юмор.
ignore null valued in union | All replies
i am trying to do union i get data with null values and i want do not want it to show in result. such as: column1 col2 col3 col4 col5 col6 test1 1 2 3 null 6 test2 2
Null values in a join | Oracle Community
null from dual union all 10 select 4, null from dual) 11 select t.id tid, t.descr tdescr, t1.id t1id, t1.descr t1descr, 12 decode(t.descr, t1.descr, 1
SQL NULL Values - IS NULL and IS NOT NULL
A field with a NULL value is one that has been left blank during record creation! How to Test for NULL Values?