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How to shrink/purge ibdata1 file in MySQL
...will not grow as large. According to Bill Karwin's comment this is enabled by default as of version 5.6.6 of MySQL.
It was a while ago I did this. However, to setup your server to use separate files for each table you need to change my.cnf in order to enable this:
[mysqld]
innodb_file_per_table=1
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How to do a batch insert in MySQL
...lists of column
values, each enclosed within
parentheses and separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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Importing a CSV file into a sqlite3 database table using Python
...e in 2.5+
# csv.DictReader uses first line in file for column headings by default
dr = csv.DictReader(fin) # comma is default delimiter
to_db = [(i['col1'], i['col2']) for i in dr]
cur.executemany("INSERT INTO t (col1, col2) VALUES (?, ?);", to_db)
con.commit()
con.close()
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Numpy index slice without losing dimension information
...pletely screw up matrix multiplication (np.matmul() or @). Just got burned by this.
– Jean-François Corbett
Mar 27 '19 at 12:02
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SQL Server: Examples of PIVOTing String data
... MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol
FROM t
GROUP BY Action
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XPath: select text node
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
MySQL offset infinite rows
... construct a query that displays all the results in a table, but is offset by 5 from the start of the table. As far as I can tell, MySQL's LIMIT requires a limit as well as an offset. Is there any way to do this?
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Can we append to a {% block %} rather than overwrite?
...ve already been evaluated and rendered - not blocks that can be overridden by, for example, an extending template.
In that case I'd recommend using django-sekizai, wich allow you to do things like:
{% load sekizai_tags %}
⎧ <p>Some content</p>
<p&g...
What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
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Comparing two NumPy arrays for equality, element-wise
...e equality of vectors within a tolerance. :)
– loved.by.Jesus
Sep 25 '18 at 8:51
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