大约有 16,000 项符合查询结果（耗时：0.0255秒） [XML]
SQL Server 2008: How to query all databases sizes?
...e AS PhysicalFile,
F.state_desc AS OnlineStatus,
CAST(F.size AS bigint) * 8*1024 AS SizeInBytes,
CAST((F.size*8.0)/1024/1024 AS decimal(18,3)) AS SizeInGB
FROM
sys.master_files F
INNER JOIN sys.databases D ON D.database_id = F.database_id
ORDER BY SizeInBytes desc
...
Setting the correct encoding when piping stdout in Python
..."åäö".encode('utf-8')
Another didactic example is a Python program to convert between ISO-8859-1 and UTF-8, making everything uppercase in between.
import sys
for line in sys.stdin:
# Decode what you receive:
line = line.decode('iso8859-1')
# Work with Unicode internally:
line...
Python - 'ascii' codec can't decode byte
...
"你好".encode('utf-8')
encode converts a unicode object to a string object. But here you have invoked it on a string object (because you don't have the u). So python has to convert the string to a unicode object first. So it does the equivalent of
"你...
Command-line Unix ASCII-based charting / plotting tool
... gnuplot -persist"
printAndRun(com)
# ---- convert to PDF
An example of use:
[$]> git shortlog -s -n | awk '{print $1}' | eplot 2> /dev/null
3500 ++-------+-------+--------+--------+-------+--------+-------+-------++
+ + + "/tmp...
What is time_t ultimately a typedef to?
... values are usually only stored in memory, not on disk. Instead, time_t is converted to text or some other portable format for persistent storage. That makes the Y2038 problem to not really be a problem.
– user25148
Jan 23 '09 at 19:21
...
T-SQL split string
...
The easiest way to do this is by using XML format.
1. Converting string to rows without table
QUERY
DECLARE @String varchar(100) = 'String1,String2,String3'
-- To change ',' to any other delimeter, just change ',' to your desired one
DECLARE @Delimiter CHAR = ','
SELECT L...
SQL Server: Filter output of sp_who2
...
You could try something like
DECLARE @Table TABLE(
SPID INT,
Status VARCHAR(MAX),
LOGIN VARCHAR(MAX),
HostName VARCHAR(MAX),
BlkBy VARCHAR(MAX),
DBName VARCHAR(MAX),
Command VARCHAR(MAX),
CPUTime INT,
DiskIO INT,
...
How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio
...g error.
A more robust way of doing this that avoids issues of SQL Server converting < to &lt; etc or failing due to these characters is below (credit Adam Machanic here).
DECLARE @S varchar(max)
SELECT @S = ''
SELECT @S = @S + '
' + OBJECT_DEFINITION(OBJECT_ID) FROM SYS.PROCEDURES
SELEC...
raw_input function in Python
...
The "input" function converts the input you enter as if it were python code. "raw_input" doesn't convert the input and takes the input as it is given. Its advisable to use raw_input for everything.
Usage:
>>a = raw_input()
>>5
>&...
How to estimate how much memory a Pandas' DataFrame will need?
...718016/1024/1024 = 392.6, so df.info(memory_usage="deep") may use 2^10 to convert byte to MB, which makes me confused. Thanks for your help anyway :D.
– Catbuilts
Oct 30 '18 at 4:01
...