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Get list of all tables in Oracle?
...ictionary table). Of course, you may want to exclude certain schemas like SYS and SYSTEM which have large numbers of Oracle tables that you probably don't care about.
Alternatively, if you do not have access to DBA_TABLES, you can see all the tables that your account has access to through the ALL_...
Getting MAC Address
... Used it personally, requires a specific install/compile on each system but works well.
– Aatch
Jun 20 '11 at 17:10
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How to convert an entire MySQL database characterset and collation to UTF-8?
How can I convert entire MySQL database character-set to UTF-8 and collation to UTF-8?
19 Answers
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How to list the size of each file and directory and sort by descending size in Bash?
... first)
ncdu
When I came to this question, I wanted to clean up my file system. The command line tool ncdu is way better suited to this task.
Installation on Ubuntu:
$ sudo apt-get install ncdu
Usage:
Just type ncdu [path] in the command line. After a few seconds for analyzing the path, you ...
MySQL, better to insert NULL or empty string?
...tching databases, is that Oracle does not support empty strings. They are converted to NULL automatically and you can't query for them using clauses like WHERE somefield = '' .
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Convert HashBytes to VarChar
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fn_varbintohexstr is not documented function. Use CONVERT(Char,@value,2)
– Cheburek
Nov 2 '11 at 11:55
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Recursively counting files in a Linux directory
... not actually transfer the files!
I used the -x option to "don't cross filesystem boundaries", which means if you execute it for / and you have external hard disks attached, it will only count the files on the root partition.
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Is std::vector copying the objects with a push_back?
... instead of a copy if the argument is an rvalue reference. (Objects can be converted to rvalue references with std::move().)
– emlai
Aug 7 '15 at 17:12
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Reasons for using the set.seed function
...NA,1000) # initialize the estimate stores
for (i in 1:1000) {
as.numeric(Sys.time())-> t; set.seed((t - floor(t)) * 1e8 -> seed) # set the seed to random seed
y <- rnorm(N, sd = sd) # generate the data
est1[i] <- optim(1, simllh, y = y, Ns = 1000, lower = 0.01)$par
est2[i] <- ...
Background ListView becomes black when scrolling
... fix this issue
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
convertView = null; // convert view should be null
if (convertView == null) {
holder = new Holder();
convertV...