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I would like to know if it is possible,
To extract the userid from an ebay page and insert it into mysql as part of an insert statement? Otherwise what would be the best way to do this?
I have files to import, which contain hundred of ebay auction urls, and I must grab the seller id from each one. Is there an easier way to do this than what I am suggesting?
You could use the eBay API for that. The URL for each page contains an item number, and that can be used to query eBay for the seller id.
eBay Hacks Item 109 gives some PHP example code to do what you need (and more).
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I'm developing an airline reservation system as my semester project. Here, when one customer books a seat in a specific aircraft, I need to prevent another customer from booking that seat at the same time. I know how to do this in back-end level using synchronization. I need to know whether there is a way to do this in database level. If so, could you please point me in some direction
You can create unique constraint for 2 columns in table like (flight_id, seat_id)
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I am making a tablature website and I wonder which is the best way to store tabs in the database.
Here is an example:
------------------------------------------------------------0------------------------------
-------------1-0---------------------1-0-----------0-1-1-1-----3-1-0-----------------------
0-0-0-2-2-2------2-0-----0-0-0-2-2-2-----2-0---0-2-------------------2-------2-0---0-------
-----------------------------------------------------------------------4-2-0-----4---------
-------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------
If it was me, and it is exactly that way, (I. E. 1-2-3) I'd go for the following:
Create table tabs (
Songid varchar(36) -- uuid or name, fk to the song
String int,
Position int
)
Depending on the server side language, you could theoretically retrieve and display them, separated by the dashes.
It'd be a bit tricky to get right, but what you would want, is to have a while loop or cursor display the number, or dash if there is no number at the given position, for the given string.
Does that make sense? I can try and elaborate, but it would depend on the language the web server was using.
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Im curious what is the distinct use of pivot table in database? I mean, how is it apply in real life.
Pivot query help us to generate an interactive table that quickly combines and compares large amounts of data. We can rotate its rows and columns to see different summaries of the source data, and we can display the details for areas of interest at a glance. It also help us to generate Multidimensional reporting.
for more information visit:
http://www.codeproject.com/Tips/500811/Simple-Way-To-Use-Pivot-In-SQL-Query
https://technet.microsoft.com/en-us/library/ms177410(v=sql.105).aspx
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I want to remove some special strings like ' in, at, on, a, an ,with... etc' from a search string in MySql.
eg-
select * from tbl_search where serachkey='best hotels in kerala';
I need to remove 'in' from string and need to look on database for best match, its somthing like google search.
I have one table with id,keys and parent_id.
The most scored parent_id should emit first.
Google Search is not an easy task to build.. but What you are in need of is Natural Language Processing.
Learn about OPEN NLP or Stanford NLP.
This will identify the parts of speech in a given sentence and you can manipulate further as per your needs.
You can also train a model for your needs.
Link for OpenNLP
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I was wondering if anyone knows how to write a SELECT statement for SQLite to get all names from, lets say a teacher column, but only once. So lets say in the teacher column...Mr. Smith shows up several times, mrs. Jones shows up several times, how can I get a list of all the teachers names, but only once? Not lots of objects of the same name.
You can use the DISTINCT keyword to remove duplicates from the result
SELECT DISTINCT teacher_name FROM teacher