On 12Sep2017 14:05, boB Stepp wrote:
As I continue to read about SQL, one thing jumps out: There are many
differences between how SQL statements are implemented among the
different database products. Even for relatively simple,
straightforward things like field concatenation. One DB might use
I forgot one other thing you mentioned that I had a question about.
On Wed, Sep 13, 2017 at 2:41 AM, Alan Gauld via Tutor wrote:
> If you limit your SQL to queries fetching raw fields you
> should find you are working with the portable subset of
> standard SQL most of the time. Basically you are
On Wed, Sep 13, 2017 at 2:55 AM, Peter Otten <__pete...@web.de> wrote:
> boB Stepp wrote:
>>
>> And these would be the SQL commands/statements I would have
>> cursor.execute use from the sqlite3 module. They would be different
>> depending on which database product I was using. Am I horribly
>>
On Wed, Sep 13, 2017 at 2:41 AM, Alan Gauld via Tutor wrote:
> The classic approach is to have 3 tiers in the architecture.
> 1) UI layer - usually a GUI toolkit - the VC part of MVC
> 2) Business logic - its the M bit of MVC... and where most OOP happens
> 3) data access - the ugly underbelly wh
2017-09-13 3:58 GMT+02:00 boB Stepp :
> On Tue, Sep 12, 2017 at 2:17 PM, Mats Wichmann wrote:
> > On 09/12/2017 01:05 PM, boB Stepp wrote:
> >> As I continue to read about SQL, one thing jumps out: There are many
> >> differences between how SQL statements are implemented among the
> >> differen
On 13/09/17 01:28, Pareshkumar Panchal wrote:
> I have set of data in excel file. i would like to create the CDF plots &
> find 40th & 70th Percentile using python with functionality of refresh
> whenever the data sets update.
There may be a good reason for this but frankly that's
what spreadshee
On 10/09/17 18:41, Mats Wichmann wrote:
> restore" and a local copy of the (mysql) db will be built. So that's
> what I just agreed with: the setup process happens outside the code app
...
> maybe it's not that unusual - any time you need to start with a
> reproducible known state of the DB, that
On 09/13/2017 09:03 AM, edmundo pierre via Tutor wrote:
> That is my code
> below. I used tkinter to calculate the limit of a function. I used Grid
> geometry, but when I click the button Answer, but nothing comes out so I do
> not know
That is my code
below. I used tkinter to calculate the limit of a function. I used Grid
geometry, but when I click the button Answer, but nothing comes out so I do not
know where I am doing wrong. I hope my code will be visible, I have t
I am a python beginner,
I have set of data in excel file. i would like to create the CDF plots &
find 40th & 70th Percentile using python with functionality of refresh
whenever the data sets update.
Thanks in Advance for your help !
___
Tutor maillist
boB Stepp wrote:
> On Tue, Sep 12, 2017 at 2:17 PM, Mats Wichmann wrote:
>> On 09/12/2017 01:05 PM, boB Stepp wrote:
>>> As I continue to read about SQL, one thing jumps out: There are many
>>> differences between how SQL statements are implemented among the
>>> different database products. Eve
On 12/09/17 20:05, boB Stepp wrote:
As I continue to read about SQL, one thing jumps out: There are many
differences between how SQL statements are implemented
usage of SQL. So how does one write one's python program to be
DB-agnostic? And if this is impossible, then what is the best way t
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