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Storing Python dictionaries
...onfigured to store dictionaries to a file, to a directory context, or to a SQL database. The API is the same for whatever you choose as the backend archive. It gives you an "archivable" dictionary with which you can use load and dump to interact with the archive.
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Shortcuts in Objective-C to concatenate NSStrings
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@JohannesFahrenkrug Then why this NSString* const SQL_CREATE_TABLE_str = @"CREATE TABLE IF NOT EXISTS " TABLE_NAME @" (...);"; doesn't work? I'm having Expected '@' in program error :(
– Vagif
Jun 1 '17 at 19:56
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mysql query order by multiple items
...ctivity ASC so sort direction for each column, default sort direction in mysql (with default configuration) is ASC.
– ZurabWeb
Jan 30 '14 at 20:29
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Delete column from SQLite table
I have a problem: I need to delete a column from my SQLite database. I wrote this query
10 Answers
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Group query results by month and year in postgresql
...rmat of the short form of month.
extract(year from date) as yyyy : Postgresql's "extract" function is used to extract the YYYY year from the "date" attribute.
sum("Sales") as "Sales" : The SUM() function adds up all the "Sales" values, and supplies a case-sensitive alias, with the case sensitivity...
MySQL: Sort GROUP_CONCAT values
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Sure, see http://dev.mysql.com/doc/refman/...tions.html#function_group-concat:
SELECT student_name,
GROUP_CONCAT(DISTINCT test_score ORDER BY test_score DESC SEPARATOR ' ')
FROM student
GROUP BY student_name;
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Vim and Ctags tips and tricks [closed]
...aglist.vim : Source code browser (supports C/C++, java, perl, python, tcl, sql, php, etc)
http://www.vim.org/scripts/script.php?script_id=273
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edited Jun 6 '11 at 10:...
MySQL select one column DISTINCT, with corresponding other columns
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@Full Decent you can't, according to MySQL documentation: "The server is free to choose any value from each group, so unless they are the same, the values chosen are indeterminate.". In practice I've successfully used this kind of queries with ORDER BY clause, fo...
MySQL Select minimum/maximum among two (or more) given values
... AS date1
FROM A, B
WHERE B.x = A.x
Both are described here http://dev.mysql.com/doc/refman/5.0/en/comparison-operators.html
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Where do I use delegates? [closed]
...ime to represent times.
This was because odbc.py expected, as values in SQL statements, dates as dbi.dbiDate whereas pyodbc.py expected datetime values.
One further complication was that the connection objects created by odbc.py and pyodbc.py did not allow one to set additional fields.
My solut...