Заполнить двумерный массив в С++, как на фото
Ответы
Не указано, какая используется СУБД, ниже запросы подойдут для Postgresql:
1. select article.id from article where article.text like '%beta%' or '%4%'
2. select article.id from article where comments.text is NULL and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
3. select users.name from users where users.id=article.user_id and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
4. SELECT article.id, COUNT(comments.id) AS "CNT" from article, comments
where article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
1. select article.id from article where article.text like '%beta%' or '%4%'
2. select article.id from article where comments.text is NULL and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
3. select users.name from users where users.id=article.user_id and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
4. SELECT article.id, COUNT(comments.id) AS "CNT" from article, comments
where article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
Ответить на вопрос
Поделитесь своими знаниями, ответьте на вопрос:
1. select article.id from article where article.text like '%beta%' or '%4%'
2. select article.id from article where comments.text is NULL and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
3. select users.name from users where users.id=article.user_id and article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id
4. SELECT article.id, COUNT(comments.id) AS "CNT" from article, comments
where article_comment_association.article_id=article.id and article_comment_association.сomment_id=comments.id