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How to “comment-out” (add comment) in a batch/cmd?
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The rem command is indeed for comments. It doesn't inherently update anyone after running the script. Some script authors might use it that way instead of echo, though, because by default the batch interpreter will print out each command before it's p...
How to create relationships in MySQL
...ULL,
balance FLOAT( 9 ) NOT NULL,
PRIMARY KEY ( account_id ),
FOREIGN KEY (customer_id) REFERENCES customers(customer_id)
) ENGINE=INNODB;
You have to specify that the tables are innodb because myisam engine doesn't support foreign key. Look here for more info.
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Is there an MD5 Fixed Point where md5(x) == x?
Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x ?
7 Answers
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How to change options of with jQuery?
...on></option>")
.attr("value", value).text(key));
});
Edit: For removing the all the options but the first, you can use the :gt selector, to get all the option elements with index greater than zero and remove them:
$('#selectId option:gt(0)').remove(); // remove all options, but not ...
JavaScript file upload size validation
Is there any way to check file size before uploading it using JavaScript?
13 Answers
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Can I underline text in an Android layout?
...wered Mar 7 '10 at 2:29
Anthony ForloneyAnthony Forloney
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How to check if running as root in a bash script
...o echo $EUID ; that's a bad test and will fail because $EUID is expanded before the command is passed to sudo. Try putting echo $EUID in a test script and running that with sudo.
– user1169420
Feb 18 '19 at 3:49
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How do I delete unpushed git commits?
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Thought git remote lists origin for me, git reset --hard origin says fatal: ambiguous argument 'origin': unknown revision or path not in the working tree.. Why?
– trss
Jul 10 '13 at 12:01
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What is the use of GO in SQL Server Management Studio & Transact SQL?
... what I understand, it is interchangeable with a semicolon (OLEDB/Oracle). For instance if you have a large post deployment script, a GO statement between lines may help memory used in the script.
– Anthony Mason
Dec 18 '15 at 15:26
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
How to detect if Visual C++ Redistributable for Visual Studio 2012 is installed?
20 Answers
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