大约有 16,000 项符合查询结果（耗时：0.0164秒） [XML]
How can I check if a string represents an int, without using try/except?
...integer part before the decimal, unless the floating point number is first converted to a string.
The check_int() function returns false for values like 0.0 and 1.0 (which technically are integers) and returns true for values like '06'.
Here are the current (Python 3.5) test results:
...
How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
...Case When ['+Column_Name+'] is null then ''Null'' Else '''''''' + Replace( Convert(varchar(Max),['+Column_Name+'] ) ,'''''''','''' ) +'''''''' end+'+''','''
FROM @COLUMNS
WHERE [Row_number]=@Counter ...
Bundling data files with PyInstaller (--onefile)
... data files like below:
a = Analysis(['C:\\Users\\TCK\\Desktop\\Projeler\\Converter-GUI.py'],
pathex=['C:\\Users\\TCK\\Desktop\\Projeler'],
binaries=[],
datas=[],
hiddenimports=[],
hookspath=[],
runtime_hooks=[],
...
SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or
... here that seems to be working pretty well:
SELECT r.session_id,r.command,CONVERT(NUMERIC(6,2),r.percent_complete)
AS [Percent Complete],CONVERT(VARCHAR(20),DATEADD(ms,r.estimated_completion_time,GetDate()),20) AS [ETA Completion Time],
CONVERT(NUMERIC(10,2),r.total_elapsed_time/1000.0/60.0) AS [El...
How to fix: “UnicodeDecodeError: 'ascii' codec can't decode byte”
...code/encode willy nilly
Don't assume your strings are UTF-8 encoded
Try to convert strings to Unicode strings as soon as possible in your code
Fix your locale: How to solve UnicodeDecodeError in Python 3.6?
Don't be tempted to use quick reload hacks
Unicode Zen in Python 2.x - The Long Version
Wi...
Python 2.7 getting user input and manipulating as string without quotations
... #float input
If you enter a string for float cast ValueError: could not convert string to float
x = eval(input("Enter a float number: ")) #eval input
If you enter a string for eval cast NameError: name ' ' is not defined
Those error also applicable for Python 2.
...
Convert Rows to columns using 'Pivot' in SQL Server
...o.
The dynamic version, generates the list of week numbers that should be converted to columns. Both give the same result:
| STORE | 1 | 2 | 3 |
---------------------------
| 101 | 138 | 282 | 220 |
| 102 | 96 | 212 | 123 |
| 105 | 37 | 78 | 60 |
| 109 | 59 | 97 | 87 |
...
How to print to stderr in Python?
...
Also you converting from print to print function is a simple find replace that 2to3 already automates for you. Just do it already if you haven't; python2 will be gone in less than 2 years... Some things between 2 and 3 can get a bit t...
How do I query if a database schema exists
...error handling" will result in the following error: Conversion failed when converting the varchar value 'ERROR' to data type int.
– user247702
Oct 24 '17 at 13:46
...
Get bitcoin historical data [closed]
...ownloadString("https://www.bitstamp.net/api/ticker/");
string value = Convert.ToString(json);
// Parse/use from here
}
From here, you can parse the JSON and store it in a database (or with MongoDB insert it directly) and then access it.
For historic data (depending on the database - if ...