mysql - SELECT newest rows, ignore old duplicates -

-

मेरी तालिका में, मेरे पास निम्न कॉलम हैं: 

  सीआरएमआईडी | उपयोगकर्ता | टिकट_आईडी | | विवरण | तिथि | घंटे   
 मैं क्या करने की कोशिश कर रहा हूँ तालिका से सभी पंक्तियों का चयन करना है, लेकिन जब दो (या अधिक) पंक्तियों में समान है, तो  ticket_id , मैं चाहता हूं नतीजतन, नवीनतम दिनांक और समय के साथ पंक्ति को प्रदर्शित करने के लिए नवीनतम।  
 यहां समस्या यह है कि मुझे ऐडिन के मामलों में होना चाहिए, यदि दिनांक कॉलम से मान समान हैं, तो मैं घंटे के कॉलम की तुलना करूँगा, अन्यथा, इसका साधारण कॉज़ मैं केवल दिनांक कॉलम की तुलना कर रहा हूं।   
 
 
  SELECT n। * से तालिका n सही जुड़ें (अधिकतम MAX_date चुनें) (अधिकतम संख्या का चयन करें (घंटे का चयन करें WHERE तारीख = max_date) के रूप में घंटे, उपयोगकर्ता, ticket_id उपयोगकर्ता द्वारा टिकट ग्रुप द्वारा उपयोगकर्ता, ticket_id) m पर n.user = m.user और n.ticket_id = m.ticket_id

Comments

Post a Comment

Popular posts from this blog

c# - Roxy file manager in MVC doesn't accept session path -

-
Hi friends I've downloaded a file manager for my MVC project. So I added to my project and everything works fine but everyone can use this product I mean everyone can type urls and upload files to my host !!!! This filemanager has a Jason config file, as you can see here: {"FILES_ROOT": "Fileman / Upload "," "File_type_kenny": "file", "THUMBS_VIEW_WIDTH": "140", "THUMBS_VIEW_HEIGHT": "120", "PREVIEW_THUMB_WIDTH": "300", "PREVIEW_THUMB_HEIGHT": "200", "MAX_IMAGE_WIDTH": "0" "ASP_net / Main.Shex? A = Created", " Dealederer ":" ASP_net / MAN.assx "ADELEDED IR "," MOVEDIR ":" ASP_net / Main.Shex? A = MoVEDIR "," Copdier ":" ASP_net / Main.Shex? A = Copdier "," Richie Dar ":" ASP_net / Main ASP_net / main.hex? A = Upload "," Downlo...
Read more

jsp - No mapping found for HTTP request with URI with annotation config Spring MVC and Jetty -

-
Image
I'm only using annotation configuration, the server starts, but when I use some pages error is displayed: Warning: no mapping found for HTTP request with URI [/WEB-INF/view/main.jsp] name 'org.springframework.web.servlet.DispatcherServlet -D7259e with DispatcherServlet in Controller mapping works fine, but no JSP page is full. I am using Jetty 9.2.0.M0 and Spring MVC 4.0.4 release. JetTyP Config: Private Static Last String CONTEXT_PATH = "/"; Private Static Last String MAPPING_URL = "/ *"; Private Zero Server (Int port) throws exceptions {server server = new server (port); Server.addLifeCycleListener (New LifeCycleListener ()); Server.setHandler (getServletContextHandler (getContext ())); Server.start (); Server.join (); } Private static ServletContextHandler getServletContextHandler (WebApplicationContext context) throws IOException {LOGGER.info ( "ServletContextHandler is ready"); CircleContaxHandler themeHandler = new circactont...
Read more

java - Ajax call to jsp and jsp redirecting to further jsp -

-
I am getting an Ajax call on a jsp page which in turn is redirecting based on the value of a flag variable JSP file. The AJAX call is something like this: $ Ajax ({url: 'uploadwebcamimage.jsp', type: "post", data: {encodeimg: dataUrl, OwnerId: document.Clickpictures.OwnerId.value, OwnerPhone: document.Clickpictures.OwnerPhone.value, mobilepass: document.Clickpictures. Mobilepass.value, emailpass: document.Clickpictures.emailpass.value, mypassword: document.Clickpictures.mypassword.value, mygroupuserid: document.Clickpictures.mygroupuserid.value}, error: work () {warning ('error');} success : Function (msg) {// warning ((msg)); if (msg) indexOf ("true")> = 0) {// how grouplist location.href = "site_index_groupadmin.jsp res1 =?" + to get the grouplist;} else {warning ("unsuccessful");}}}); And in jsp I have done something like this: & lt;% ArrayList & lt; String & gt; List = New Arrestist & lt; Stri...
Read more