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i'd access values in maps , records, throwing exception when key isn't present. here's i've tried. there better strategy? this doesn't work because throw evaluated every time: (defn get-or-throw-1 [rec key] (get rec key (throw (exception. "no value.")))) maybe there's simple method using macro? well, isn't it; has same problem first definition, if evaluation of throw happens later: (defmacro get-or-throw-2 [rec key] `(get ~rec ~key (throw (exception. "no value.")))) this 1 works letting get return value (in theory) never generated other way: (defn get-or-throw-3 [rec key] (let [not-found-thing :i_would_never_name_some_thing_this_021138465079313 value (get rec key not-found-thing)] (if (= value not-found-thing) (throw (exception. "no value.")) value))) i don't having guess keywords or symbols never occur through other processes. (i use gensym generate special value of

some docs says, there "undo tablespaces" implies should create tablespace undo imformation. some docs says, there "undo segment" implies undo information lives in normal tablespaces , use of it's segment. so, undo information lives , organized? earlier releases of oracle database used rollback segments store undo. oracle9i introduced automatic undo management, simplifies undo space management eliminating complexities associated rollback segment management. oracle recommends (oracle 9i , on words) use undo tablespace (automatic undo management) manage undo rather rollback segments. when creating undo tablespace, these automatically created: n undo segments (based on sessions parameter value) named _syssmun$ owned public (usable ops configuration) not manually manageable

i'm new networking , lidgren has made easier me begin adding multiplayer capability xna pc game. i've been testing across network setting laptop right next me , has been working great. problem sent copy of game friend in netherlands , cannot connect me. have set 1 person host , other people clients connect host. the host sets server follows: config = new netpeerconfiguration("game"); config.port = 14242; config.enableupnp = true; config.maximumconnections = 3; config.enablemessagetype(netincomingmessagetype.connectionapproval); server = new netserver(config); server.start(); server.upnp.forwardport(14242, "forlorn forest"); here's exception forwardport throws fails , gives "bad request": and 2 web exceptions thrown: it says connection being closed remote host , unable read data transport connection in exception details: any thoughts might going on here? upnp enabled on router. i've taken @ network traffic wireshark

$('body').unload(function () { }); $('body').on("beforeunload", function () { //if true means logged clicked else page close clicked if (istrue == 0) { btgui.webservices.connectiontoken.getlogoutclientusermethod(logoutclientusermethodsucess); } else { btgui.webservices.connectiontoken.pageclosedxmlmethod(hddclient, hddusername); } bind() or on() events not firing in ie 10,except ie working browsers fine. ie version work i'm using jquery 1.7.0 i'm tested $(window) not working. yes, event handler should bound $(window). beforeunload handler supposed return string displayed in confirmation box. seems me you're doing lot more that.

i have downloaded , compiled vanilla linux kernel (3.7.1) used busybox ramdisk booted using qemu. qemu command line qemu-system-i386 -kernel bzimage -initrd ramdisk.img -append "root=/dev/ram rw console=ttys0 rdinit=/bin/ash" -nographic -net nic -net user everything goes well. however, can't use networking on vanilla kernel busybox. 'ifup eth0' tells me / # ifup eth0 ip: siocgifflags: no such device i googled internet can' clue... advice nice thank in advance. most there no driver (in example should e1000) loaded or device has name. in /sys/class/net/ should find listing of available net-devices. if there none (besides lo) driver not loaded. in qemu monitor type "info pci" , show pci-address of ethernet card. should this: ... bus 0, device 3, function 0: ethernet controller: pci device 8086:100e ... this device corresponds /sys/devices/pci0000:00/0000:00:03.0/. files "vendor" , "device" must c

i try run query using java , below mentioned program import java.sql.connection; import java.sql.drivermanager; import java.sql.resultset; import java.sql.statement; import javax.naming.spi.dirstatefactory.result; public class oracleconn { public static void main(string[] args) { try { class.forname("oracle.jdbc.driver.oracledriver"); connection con = drivermanager.getconnection("jdbc:oracle:thin:@localhost:1521:yglobal","user","user"); statement stmt = con.createstatement(); resultset rs = stmt.executequery("select empid empmaster"); while(rs.next()) system.out.println(rs.getint(1)); con.close(); } catch (exception e) { e.printstacktrace(); }} } but when tried run program getting exception java.sql.sqlexception: ora-01756: quoted string not terminated @ oracle.jdbc.driver.databasee