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Do I need to create indexes on foreign keys on Oracle?
...int creates also an index... i.e. Jet Engine (MSAccess files, Firebird and MySQL)
– bubi
Apr 23 '15 at 15:19
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warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777
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You will need to have root access to do this. If you aren't already the administrative user, login as the administrator. Then use 'sudo' to change the permissions:
sudo chmod go-w /usr/local/bin
Obviously, that will mean you can no longer ins...
马云：互联网时代已经过去20年，接下来30年才是关键 - 资讯 - 清泛网 - 专...
...正的机会。所谓现在提出互联网+，还有一个就是互联网如何变成一种应用。未来的时代，更多的靠知识，更多靠的是你的勇气，更多靠你的坚韧不拔去努力。所以我觉得，未来的30年，我们这些人，肯定不行了，那时候我是后来...
Execute a terminal command from a Cocoa app
...n use this method like this:
NSString *output = runCommand(@"ps -A | grep mysql");
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What is the length of the access_token in Facebook OAuth2?
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MySQL requires an upper-bound on this. Please give a realistic upperbound. e.g. 1000 characters, 10,000 characters, 1,000,000,000 characters? Having no upper-bound is just unreasonable.
– Yahya Uddin
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Simulate delayed and dropped packets on Linux
...y to all packets going out of the local Ethernet.
# tc qdisc add dev eth0 root netem delay 100ms
Now a simple ping test to host on the local network should show an increase of 100 milliseconds. The delay is limited by the clock resolution of the kernel (Hz). On most 2.4 systems, the system cl...
How to replace spaces in file names using a bash script
... spaces with underscores in file and directory names starting from a given root directory? For example:
18 Answers
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How to enable cURL in PHP / XAMPP
...restart the Apache service.
NB: In newer XAMPP versions, PHP has moved to root xampp folder xampp\php\php.ini.
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Map enum in JPA with fixed values?
...nverter.
Create an enumerated class like so:
public enum NodeType {
ROOT("root-node"),
BRANCH("branch-node"),
LEAF("leaf-node");
private final String code;
private NodeType(String code) {
this.code = code;
}
public String getCode() {
return code;
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?
... you can find the GUID for it from the registry (somewhere in HKEY_CLASSES_ROOT\Installer).
– Maurice Gilden
Jan 21 '16 at 11:46
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