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What is compiler, linker, loader?
...
A compiler reads, analyses and translates code into either an object file or a list of error messages.
A linker combines one or more object files and possible some library code into either some executable, some library or a list of error messa...
Why does the expression 0 < 0 == 0 return False in Python?
...ly (the bytes codes) it is obvious why 0 < 0 == 0 is False.
Here is an analysis of this expression:
>>>import dis
>>>def f():
... 0 < 0 == 0
>>>dis.dis(f)
2 0 LOAD_CONST 1 (0)
3 LOAD_CONST 1 (0)
6 DUP_TOP
...
SQL Server Regular expressions in T-SQL
...ution may not be any more desirable to the OP than the use of a CLR stored procedure. But it does offer an additional way to approach the problem.
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Does Java support default parameter values?
... limitations of the previous approaches you can allow null values and then analyse each parameter in a method body:
void foo(String a, Integer b, Integer c) {
b = b != null ? b : 0;
c = c != null ? c : 0;
//...
}
foo("a", null, 2);
Now all arguments values must be provided, but the d...
Why do people hate SQL cursors so much? [closed]
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Cursors make people overly apply a procedural mindset to a set-based environment.
And they are SLOW!!!
From SQLTeam:
Please note that cursors are the
SLOWEST way to access data inside SQL
Server. The should only be used when
you truly need to acces...
Functional programming - is immutability expensive? [closed]
... worst-case asymptotic runtime (O(n^2)) and space complexity (O(n)) as the procedural in-place version.
On average, its running time is still on par with that of the in-place variant (O(n log n)). Its space complexity, however, is still O(n).
There are two obvious disadvantages of a functional ...
Is the NOLOCK (Sql Server hint) bad practice?
...sly clear. (I would only ever use it, in extreme circumstances where I had analysed that it was OK). AS an example, a while back I worked on some TSQL that had been sprinkled with NOLOCK to try and alleviate locking problems. I removed them all, implemented the correct indexes, and ALL of the deadlo...
SQL Server String or binary data would be truncated
...he following additional context information.
Msg 2628, Level 16, State 6, Procedure ProcedureName, Line Linenumber
String or binary data would be truncated in table '%.*ls', column '%.*ls'.
Truncated value: '%.*ls'.
The new message ID is 2628. This message replaces message 8152 in any error o...
SQL Server - stop or break execution of a SQL script
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Just use a RETURN (it will work both inside and outside a stored procedure).
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Copy values from one column to another in the same table
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you can do it with Procedure also so i have a procedure for this
DELIMITER $$
CREATE PROCEDURE copyTo()
BEGIN
DECLARE x INT;
DECLARE str varchar(45);
SET x = 1;
set str = '';
...