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How to select only 1 row from oracle sql?

I want to use oracle syntax to select only 1 row from table DUAL . For example, I want to execute this query: 13 Answers ...
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How do I kill all the processes in Mysql “show processlist”?

...peration saves time. Do it in MySql itself: Run these commands mysql> select concat('KILL ',id,';') from information_schema.processlist where user='root' and time > 200 into outfile '/tmp/a.txt'; mysql> source /tmp/a.txt; Reference ---------edit------------ if you do not want to sto...
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How do I find the width & height of a terminal window?

... wrapper for that. E.g in Perl you can use Term::Size: use Term::Size qw( chars ); my ( $columns, $rows ) = chars \*STDOUT; share | improve this answer |
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Spring JPA selecting specific columns

...Spring JPA to perform all database operations. However I don't know how to select specific columns from a table in Spring JPA? ...
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How can I select an element with multiple classes in jQuery?

I want to select all the elements that have the two classes a and b . 13 Answers 13...
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Ordering by specific field value first

...QL FIELD function. If you want complete sorting for all possible values: SELECT id, name, priority FROM mytable ORDER BY FIELD(name, "core", "board", "other") If you only care that "core" is first and the other values don't matter: SELECT id, name, priority FROM mytable ORDER BY FIELD(name, "co...
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How to convert QString to std::string?

... That's true - I was thinking about const char *x = qs.ToUtf8().constData(). Still, isn't it easier to just call qs.toStdString()? – Vitali Dec 6 '11 at 14:36 ...
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How does Trello access the user's clipboard?

...ually "access the user's clipboard", instead we help the user out a bit by selecting something useful when they press Ctrl+C. Sounds like you've figured it out; we take advantage of the fact that when you want to hit Ctrl+C, you have to hit the Ctrl key first. When the Ctrl key is pressed, we pop ...
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Read error response body in Java

...bufferedReader.read()) != -1) { sb.append((char) cp); } bufferedReader.close(); } in.close(); } else { /* error fro...
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What is in your .vimrc? [closed]

... is there any way to select from more colors? – Fzs2 Aug 13 '10 at 10:13 ...