querying

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What is the best practice to query dates in SQL when parameterised queries are not possible

My brief is to implement a interface which has a method that looks something like \'GetValuesSqlStatement\' below:[详细]

2023-04-07 12:36 分类：问答
Python Flask - Easy Querying Function

Can somebody explain me the last line return (rv[0] if rv else None) if one else rv ? Especially the role of one.[详细]

2023-04-06 02:10 分类：问答
PHP and MySQL: Order by most recent date and limit 10

I am building a notes system on my site and I\'ve got to the stage where users can post notes into the MySQL database using PHP and then PHP prints t开发者_C百科hem out on a page. However, when they p[详细]

2023-03-31 08:52 分类：问答
How fast is it to look up by ObjectId in Mongodb?

I\'m looki开发者_JAVA百科ng up ObjectIds everywhere, as if they\'re cake. Is this OK? _id fields are supposed to be looked up like crazy, right?A more precise answer: MongoDB uses B-Tree indexes. Sea[详细]

2023-03-16 15:57 分类：问答
mysql: implement function into query

i\'m having a database which is storing geo-data like countries, cities. i would like to use modrewrite with links like:[详细]

2023-03-06 14:05 分类：问答
Database Querying through a Model

When working with an MVC framework and querying the database from the controller using the model, what is the best pr开发者_运维知识库actice?[详细]

2023-03-02 19:14 分类：问答
Querying a many-to-many collection or how to include a many-to-many table in a criteria query?

I am quite new to the world of NHibe开发者_如何学Crnate and I can\'t seem to get this to work with the use of a criteria query: query a many-to-many relationship or query a collection (set/bag) on an[详细]

2023-02-19 11:44 分类：问答
Indexing and Querying URLS in Solr

I have a database of URLs that I would like to search.Because URLs are not always written the same (may or may not have www), I am looking for the correct way to Index and Query urls.[详细]

2023-02-04 07:24 分类：问答
Nested select statement in SQL Server

Why doesn\'t the following work? SELECT name FROM (SELECT name FROM agentinformation) 开发者_开发技巧[详细]

2023-02-03 07:07 分类：问答
mongodb php getting fields unique values

I\'m trying to get a list of unique values from the \'type\' field from my mongodb collection. Example documents below:[详细]

2023-01-27 12:50 分类：问答