473,703 Members | 2,643 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

sqlite3 views, if not exists clause

Hi,
I'm running into a problem when trying to create a view in my sqlite
database in python. I think its a bug in the sqlite3 api that comes with
python 2.5.

This works as expected:
conn = sqlite3.connect (':memory:')
conn.execute("c reate table foo (a int,b int)")
conn.execute('c reate view bar as select * from foo')

This fails as expected:
conn = sqlite3.connect (':memory:')
conn.execute("c reate table foo (a int,b int)")
conn.execute('c reate view bar as select * from foo')
conn.execute('c reate view bar as select * from foo')
with exception "sqlite3.Operat ionalError: table bar already exists".
Weird that it fails with TABLE bar already exists, but this is the message
that sqlite actually returns so it is not python's fault.

THIS DOES NOT WORK, but it should!
conn = sqlite3.connect (':memory:')
conn.execute("c reate table foo (a int,b int)")
conn.execute('c reate view if not exists bar as select * from foo')
it fails with exception "sqlite3.Operat ionalError: near "not": syntax error"

Can anyone confirm, or pass this on to the appropriate person?
Thanks!
Josh

Nov 14 '06 #1
2 4945
"Josh" wrote:
THIS DOES NOT WORK, but it should!
Python 2.5 was released on September 19th, 2006, and support for CREATE
VIEW IF NOT EXISTS was added to sqlite on October 9th, 2006:

http://www.sqlite.org/changes.html

</F>

Nov 14 '06 #2
Fredrik Lundh wrote:
"Josh" wrote:
>THIS DOES NOT WORK, but it should!

Python 2.5 was released on September 19th, 2006, and support for CREATE
VIEW IF NOT EXISTS was added to sqlite on October 9th, 2006:
So? "from __future__ import ..." should have supported this! <:o)

--
Roberto Bonvallet
Nov 14 '06 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

8
5255
by: Mike | last post by:
Hello, I have a few rather urgent questions that I hope someone can help with (I need to figure this out prior to a meeting tomorrow.) First, a bit of background: The company I work for is developing a web-based application, one part of which involves allowing the user the ability to page through transaction "history" information. The _summary_ history table will have the following fields: ServiceName, Date, User-Ref1, User-Ref2,...
9
1998
by: Riley DeWiley | last post by:
I have a programming problem in OLEDB and C++ that seems to be pointing me toward using layered views and hierarchical rowsets. However, I am uncertain of the precise implementation and need guidance from someone experienced in those areas. The problem, in the abstract, is how to select a set of records in one table, each one of which has a relation to every one of a set of records in another table, the tables being joined in a...
2
1953
by: dbuchanan52 | last post by:
Hello, I am building an application for Windows Forms using. I am new to SQL Server 'Views'. Are the following correct understanding of their use? 1.) I believe a view can be referenced in a stored procedure something like this; Select * from View1 Is that true?
6
1691
by: Jim Devenish | last post by:
I have 3 views, two of which depend on the other: CREATE VIEW dbo.CustomerListQueryAccounts AS SELECT dbo.CustomerListQuery.* FROM dbo.CustomerListQuery WHERE (isProspect = 0) CREATE VIEW dbo.CustomerListQueryProspects AS
66
7064
by: mensanator | last post by:
Probably just me. I've only been using Access and SQL Server for 12 years, so I'm sure my opinions don't count for anything. I was, nevertheless, looking forward to Sqlite3. And now that gmpy has been upgraded, I can go ahead and install Python 2.5. So I open the manual to Section 13.13 where I find the first example of how to use Sqlite3:
38
2812
by: John Salerno | last post by:
Here's my script: import sqlite3 con = sqlite3.connect('labdb') cur = con.cursor() cur.executescript(''' DROP TABLE IF EXISTS Researchers; CREATE TABLE Researchers ( researcherID varchar(9) PRIMARY KEY NOT NULL,
29
2363
by: dbhbarton | last post by:
Had a thought that's grown on me. No idea if it's original or not- too inexperienced in programming- but I guess there's no harm floating it out there. Python wins big on readability, and there's no doubt that context- dependent text formatting in IDEs (keywords, strings, comments etc) is a massive help too, therefore benefitting development and maintenance. This idea is in a similar vein, especially for when scripts grow large.
2
1715
by: Victor Lin | last post by:
Now I am now developing a program that base on sqlite3 in python. But there is a strange problem. That is, all data I insert into sqlite database do not goes into file in disk. It is really strange.... Why do these data just keep in memory and discarded? All things that really store in file is the table. If I create a table, it would appears in the sqlite file.
0
4076
by: David | last post by:
- Are there any peculiarities with using curs.executemany(...) vs. multiple How many times are you calling execute vs a single executemany? The python call overhead will add up for thousands of calls. The relevant source code is here if you're interested: http://svn.python.org/projects/python/trunk/Modules/_sqlite/cursor.c
0
8662
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9109
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
9002
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7853
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
5922
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4420
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
3113
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2434
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2057
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.