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How do I get the “id” after INSERT into MySQL database with Python?
... cursor = connection.cursor()
>>> cursor.execute('INSERT INTO sometable VALUES (...)')
1L
>>> connection.insert_id()
3L
>>> cursor.lastrowid
3L
>>> cursor.execute('SELECT last_insert_id()')
1L
>>> cursor.fetchone()
(3L,)
>>> cursor.execute('selec...
Match whitespace but not newlines
...Unicode, use code similar to the sub below to construct a pattern from the table in the aforementioned documentation section.
sub ws_not_nl {
local($_) = <<'EOTable';
0x0009 CHARACTER TABULATION h s
0x000a LINE FEED (LF) vs
0x000b LINE TABULATION vs ...
Implement paging (skip / take) functionality with this query
...y a column, so you can specify the rows you want.
Example:
select * from table order by [some_column]
offset 10 rows
FETCH NEXT 10 rows only
And you can't use the "TOP" keyword when doing this.
You can learn more here:
https://technet.microsoft.com/pt-br/library/gg699618%28v=sql.110%29.aspx
...
Why is it not advisable to have the database and web server on the same machine?
...ver will cause downtime all by itself. Enough privileges to add records to tables is enough to render a site useless.
– Daniel Earwicker
Mar 19 '09 at 0:04
How to convert a string to an integer in JavaScript?
...ing radix 10 is only necessary for older browsers. kangax.github.io/compat-table/es5/…
– Grilse
Jul 30 '15 at 10:31
25
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SQL Logic Operator Precedence: And and Or
...
Query to show a 3-variable boolean expression truth table :
;WITH cteData AS
(SELECT 0 AS A, 0 AS B, 0 AS C
UNION ALL SELECT 0,0,1
UNION ALL SELECT 0,1,0
UNION ALL SELECT 0,1,1
UNION ALL SELECT 1,0,0
UNION ALL SELECT 1,0,1
UNION ALL SELECT 1,1,0
UNION ALL SELECT 1,1,1
)
SELEC...
Entity Framework rollback and remove bad migration
...ad migration to the database. I tried, but it was not working, because the table names I specified in original question. The first option I don't like much, because it looks like I would have to change code of the migration. If I do it poorly, I can broke it all down.
– Martin ...
What are five things you hate about your favorite language? [closed]
...g it easy to prematurely execute an UPDATE or DELETE, destroying the whole table. Instead, the WHERE should go somewhere up front.
It's difficult to implement relational division.
I can set a value to NULL, but I can't test it for equality with NULL. I can check IS NULL, but that just complicates ...
Python __call__ special method practical example
...
This example uses memoization, basically storing values in a table (dictionary in this case) so you can look them up later instead of recalculating them.
Here we use a simple class with a __call__ method to calculate factorials (through a callable object) instead of a factorial functi...
How to display full (non-truncated) dataframe information in html when converting from pandas datafr
...uncated for me, as represented by and ellipsis (...) near the middle of my table. Thanks!
– four43
Jan 1 '18 at 18:30
4
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