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defining functions clojure

(defn saysomething      " i dont want to talk to you"      [name]      (str "why is it so?" name)) #'my-clojureproject1.core/saysomething => (println (saysomething "anjana") => (defn saymorethings "what do you want to hear" [name] (str "life is a box of chocolates" name)) #'my-clojureproject1.core/saymorethings => (println (saymorethings "nirosha")             ) life is a box of chocolatesnirosha nil

Learning clojure day-1

;; Clojure 1.6.0 => (count a[eee ttt tt]) CompilerException clojure.lang.ArityException: Wrong number of args (2) passed to: core/count--inliner, compiling:(C:\Users\\AppData\Local\Temp\form-init7824848865457405872.clj:1:1) => (count [eee tt 565 dfsxf 889 dfgd]) CompilerException java.lang.RuntimeException: Unable to resolve symbol: eee in this context, compiling:(C:\Users\\AppData\Local\Temp\form-init7824848865457405872.clj:1:1) => (count ["aaa" "ddd" 56 45 ""]) 5 => (def storages["ssss" "sddsdsd" "333dsfsd"]) #'my-clojureproject1.core/storages => (first storages) ssss => (second storages) sddsdsd => (last storages) 333dsfsd => (nthext storages 2) CompilerException java.lang.RuntimeException: Unable to resolve symbol: nthext in this context, compiling:(C:\Users\am055849\AppData\Local\Temp\form-init7824848865457405872.clj:1:1) => (nthnext storages 2) ("333dsfsd") =&g

Deploy 2 spring .war with different context on JBOSS 7 AS

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Assume you have 2 applications SpringApp1.war SpringApp2.war when you try to deploy both on JBOSS 7 AS,  you will may see some error like this: Exception sending context initialized event to listener  instance of class org.springframework.web.util.Log4jConfigListener  java.lang.IllegalStateException: Web app root system property already set to  a different value: 'webapp.root' = [E:\jboss-as-7.1.1.Final\standalone\deployments\SpringApp1.war] instead of [E:\jboss-as-7.1.1.Final\standalone\deployments\SpringApp2.war]  - Choose unique values for the 'webAppRootKey'  context-param in your web.xml  ensure you add the below context param in web.xml of both the .war files:

How to get count of distinct column in ORACLE

select   DISTINCT COL_NAME_1,count( DISTINCT COL_NAME_2) as COUNT from TABLE_NAME   group by COL_NAME_1 ;