On Sun, Mar 20, 2011 at 3:54 PM, Marc Delisle marc@infomarc.info wrote:
Le 2011-03-20 06:14, Ammar Yasir a écrit :
On Sun, Mar 20, 2011 at 3:02 PM, Marc Delisle marc@infomarc.info
wrote:
Le 2011-03-19 17:35, Ammar Yasir a écrit :
On Sun, Mar 20, 2011 at 2:00 AM, Marc Delisle marc@infomarc.info
wrote:
Le 2011-03-19 15:13, Ammar Yasir a écrit :
Sir,
I looked at the table search page. One problem I find is that a form
such
as
table search page consists of all the columns. I think in general a
user
is
interested in at most 2-3 criteria for searching at once. If number
of
columns are more(in a table eg. users table in mysql database), the
search
table form will contain lot of irrelevant fields(to his query). Can
the
page
be something like it asks the user to select the column first, then
its
detail and then again a column if he wants to build the query
further?
(Please do not top-post, conversations are difficult to follow).
I was referring to the Table Search page because we'll have to avoid duplicating the same functionality on many pages.
You are right, the table Search page displays all the columns in
"query
by example" but in its Options hidden panel you can choose the columns that will be displayed. I think that this behavior could be improved
by
adding a way to quickly hide or show which columns are to receive a search criterion.
I think that we can reduce some fields by combining elements from the
table
search page and those from the options hidden pane. The table search
form
provides appropriate operations for each column and in options panel we
can
select columns but it just provides a textbox to enter the body of the
WHERE
clause.
As in this case we are only interested in selecting one of the columns, initially we can just have a list of columns and then when a user
clicks
on
one of the columns, the appropriate operations available for that
column
appear. This reduces some of the fields on the screen.
This should work but the user needs to select two columns, not just one.
We can put a constant on the number of search criteria to 2, so you'll
have
to select exactly two columns.
One more thing, can the two columns be from different tables also. Like
for
example, for a house auction database: There is a 'house' table (neighborhood,address,no_of_rooms,plot_size....) and a sales table (selling_price,date_sold,....) and the user might want to see a visualization of plot_size vs selling_price.
Do you think I am going off the project idea? This would involve using underlying relationship between the house table and sales table and it
would
be fairly complex to develop such system.
Yes it could. I'm not saying that this project has to support this, however.
Do you know about the multi-tables query generator? You click on a database name, then Query. This has been there for many years and in version 3.4 there is a visual mode. This feature generates the multi-table query, based on existing relations (only from internal relations, sadly not yet for Innodb-style relations, see FAQ 3.6).
I totally forgot about that feature. This interface can combine well with
visualizing query results spanning multiple tables.
Can we conclude that whatever way is used to generate the query, the zoom-search mode could be used when we have a results set containing two columns?
Yes, I agree with this. So for the visualization part, there is one point mentioned that when we zoom in for example in the movies database case we see the movie's title. How is that to be decided that what label to show for a point? Should the user input this or does the system comes up with a label(like a key for each point)?
Also, I submitted a patch for mass table prefix change. May someone look at it and confirm? I had made changes to the original patch but I didn't get any comments further.
Regards, Ammar Yasir
-- Marc Delisle http://infomarc.info
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