metadata

问题 Is it possible to select from show tables in MySQL? SELECT * FROM (SHOW TABLES) AS `my_tables` Something along these lines, though the above does not work (on 5.0.51a, at least). 回答1: I think you want SELECT * FROM INFORMATION_SCHEMA.TABLES See http://dev.mysql.com/doc/refman/5.0/en/tables-table.html 回答2: Not that I know of, unless you select from INFORMATION_SCHEMA , as others have mentioned. However, the SHOW command is pretty flexible, E.g.: SHOW tables like '%s%' 回答3: To count: SELECT

问题 I have a table structure as shown below I am running a query for search that searches for property id with provided meta_value against meta_name. I have used union, self join, union all methods but were not working, please suggest me query that will get a data mysql queries are 1) SELECT property_id from real_new_properties where (meta_name = 'price' and meta_value = '1000') and (meta_name = 'propertyvalue' and meta_value = '10000') 2) SELECT property_id from real_new_properties where meta

问题 I'm currently working on a solution to automatically generate ExtJS forms based on a hibernate mapping (I use hibernate reverse engineering for that based on @Annotations). Hibernate has a getPropertiesInterator() http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/mapping/PersistentClass.html#getPropertyIterator%28%29 funciton for that. Which is accessible like this ((LocalSessionFactoryBean)sessionFactory).getConfiguration().getClassMapping(<Classname>.class.getName()) Which lists

问题 Given a long format data set like this: ID_2<-c('A','A','A','B','B','C','E','E','F','F','H','H','H') Type<-c('Blk','Wht','Gre','Blk','Wht','Blk','Blk','Wht','Blk','Wht','Wht','Blk','Gre') Count<-c(1,2,2,1,2,1,2,1,2,1,2,1,2) DF2<-data.frame(ID_2,Type,Count) I would like to add a specific set of metadata for each unique ID (ID_2). The metadata would be found in a separate data frame like so: Year<-c(2005,2005,2006,2006,2007,2008,2008,2008) Location<-c('EAST','EAST','WEST','WEST','NORTH','EAST',

问题 Given a long format data set like this: ID_2<-c('A','A','A','B','B','C','E','E','F','F','H','H','H') Type<-c('Blk','Wht','Gre','Blk','Wht','Blk','Blk','Wht','Blk','Wht','Wht','Blk','Gre') Count<-c(1,2,2,1,2,1,2,1,2,1,2,1,2) DF2<-data.frame(ID_2,Type,Count) I would like to add a specific set of metadata for each unique ID (ID_2). The metadata would be found in a separate data frame like so: Year<-c(2005,2005,2006,2006,2007,2008,2008,2008) Location<-c('EAST','EAST','WEST','WEST','NORTH','EAST',

问题 I've a large set of text documents which I will index with Solr, in a format where each line of text has associated metadata. For example: #metadata1 A line of text. #metadata2 Another long, broken line of #metadata3 text that should be searchable. I'd like to index this such that the content is searchable, including phrase matches spanning multiple lines, but not the metadata. However, I can't discard the metadata: I would like to have any matches still have the associated metadata. E.g. A

问题 I'm trying to extract icecast metadata from streams. I have code that works for some streams and not for others. The issue is that some streams don't return the icymetaint value and that's where the code gets lost. I can't get the icymetaint header from this stream: http://radio.hbr1.com:19800/tronic.ogg But when I put it in VLC media player it shows the meta just fine. So what exactly am I missing here? What other ways are there for an icecast stream to transmit metdata? The stream version

问题 Is it possible or not?If yes,it will be a big help for debugging. Update: For metadata,I mean the content of after given|when|then statement,such as: def "test case"... given:"some preconditions" when:"do something" then:"some result" ... I want that blow content got printed: "test case" begins "some preconditions" "do something" "some result" 回答1: Currently this is not possible because even if you write a Spock extension, the deepest you can hook into at the moment is feature method

问题 I have found hints that MVC 2 recognises the 'buddy class' type of property metadata, where data annotation attributes are applied to a 'buddy' metadata class, and the MetadataType on the actual entity class points to that buddy class, as below. However, as below, it seems the only attribute that makes any difference to the rendered UI is DisplayName . Why are the other attributes like DataType , Required , and ReadOnly not working? I.e. why can I enter text in a read only field? Why do I not

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . I have a webforms (framework 3.5) site with a TON of dynamic content. Depending on the url, one or many content items will be sent to the client. I need a way to generate meta keywords for SEO based on the contents of the page (or part of the page, if possible). I've done a little