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How to get primary key column in Oracle?
...e which is called test and then query
create table test
(
id int,
name varchar2(20),
city varchar2(20),
phone int,
constraint pk_id_name_city primary key (id,name,city)
);
SELECT cols.table_name, cols.column_name, cols.position, cons.status, cons.owner FROM all_constraints cons, all_cons_columns c...
[ :Unexpected operator in shell programming [duplicate]
...gh omitted whitespace around the brackets hardly compensate for the single character saved. ("if [ $x = 5 ]" vs "if test $x = 5"; 13 chars vs 14).
– William Pursell
Aug 8 '10 at 3:17
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Inserting a tab character into text using C#
...
Try using the \t character in your strings
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MySQL select where column is not empty
...very recently and was very difficult to debug :(
If you're using strings (char, varchar, text, etc.), then this will be perfectly be fine, just be careful with numerics.
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What is cardinality in MySQL?
...m Percona:
CREATE TABLE `antest` (
`i` int(10) unsigned NOT NULL,
`c` char(80) default NULL,
KEY `i` (`i`),
KEY `c` (`c`,`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
mysql> select count(distinct c) from antest;
+-------------------+
| count(distinct c) |
+-------------------+
| ...
How do I remove all non-ASCII characters with regex and Notepad++?
I searched a lot, but nowhere is it written how to remove non-ASCII characters from Notepad++.
7 Answers
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Count number of occurrences of a given substring in a string
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s = 'sub1 sub2 sub3'
s.split().index('sub2')
>>> 1
You mean the char-position of the sub-string in the string:
s.find('sub2')
>>> 5
You mean the (non-overlapping) counts of appearance of a su-bstring:
s.count('sub2')
>>> 1
s.count('sub')
>>> 3
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How to get the ASCII value of a character
How do I get the ASCII value of a character as an int in Python ?
5 Answers
5
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What's a good hex editor/viewer for the Mac? [closed]
...ng vim as described in this answer) is that there's no highlighting of the char and binary value. You'll need to count more characters and remember more positions to use this "dumb" binary dump effectively. Also, there's no intelligent analysis of endianness or interpretation of byte ranges as diffe...
How can I format a String number to have commas and round?
...as well merge this into a BigInteger type of class that handles compressed char[] arrays for math computations.
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