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How to sort a dataframe by multiple column(s)
...ices
order from base
arrange from dplyr
setorder and setorderv from data.table
arrange from plyr
sort from taRifx
orderBy from doBy
sortData from Deducer
Most of the time you should use the dplyr or data.table solutions, unless having no-dependencies is important, in which case use base::order.
...
Printing Lists as Tabular Data
...e 24
Bob 19
tabulate has many options to specify headers and table format.
print(tabulate([['Alice', 24], ['Bob', 19]], headers=['Name', 'Age'], tablefmt='orgtbl'))
| Name | Age |
|--------+-------|
| Alice | 24 |
| Bob | 19 |
2. PrettyTable: https://pypi.python.org/...
Can I use multiple “with”?
... + '%', X.[SQL]) > 0
) AS INC
)
And yes, you can reference common table expression inside common table expression definition. Even recursively. Which leads to some very neat tricks.
share
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...
Correct way to use StringBuilder in SQL
...ink you've misquoted it, though; surely there aren't quotes around id2 and table?)
Note that the aim (usually) is to reduce memory churn rather than total memory used, to make life a bit easier on the garbage collector.
Will that take memory equal to using String like below?
No, it'll cause m...
What is the syntax for an inner join in LINQ to SQL?
...
It goes something like:
from t1 in db.Table1
join t2 in db.Table2 on t1.field equals t2.field
select new { t1.field2, t2.field3}
It would be nice to have sensible names and fields for your tables for a better example. :)
Update
I think for your query this mig...
Import CSV file into SQL Server
...ll be
inserted with double quotes into rows.
after inserting the data into table you could replace those double quotes with ''.
update table
set columnhavingdoublequotes = replace(columnhavingdoublequotes,'"','')
3) How do we track if some rows have bad data, which import skips?
(does import...
How can I list all collections in the MongoDB shell?
...e current database that I'm using?
Three methods
show collections
show tables
db.getCollectionNames()
To list all databases:
show dbs
To enter or use a given database:
use databasename
To list all collections:
show collections
Output:
collection1
collection2
system.indexes
(o...
How to create ENUM type in SQLite?
I need to convert a table from MySQL to SQLite, but I can't figure out how to convert an enum field, because I can't find ENUM type in SQLite.
...
In a storyboard, how do I make a custom cell for use with multiple controllers?
...he goal is to have those be re-usable throughout the app (ie, in any of my tableview controllers).
6 Answers
...
How to vertically center a inside a div? [duplicate]
... @Blender Heh, though therein references a third option: display:table-cell; vertical-align:middle (along with a display:table-row parent). :) But no, you can be sure that I would never advocate using HTML table elements for layout.
– Phrogz
Dec 5 '10...