python - CX_ORACLE TNS:listener does not currently know of service requested in connect descriptor -


i trying connect database server python using cx_oracle . have constructed connection string as

dbconfig['schema']+"/"+dbconfig['password']+"@"+dbconfig["ip"]+"/"+dbconfig['sid']

where dbconfig dictionary necessary credentials database connection

i able connect 1 of server using vpn connection . when try connect 1 of server in local network displays "tns:listener not know of service requested in connect descriptor" error.

i modified tnsnames.ora file appropriate sid though not required in other case . after that, able login using sqlplus . had no luck python code.

you connecting database using hostname connection type or called "easy connect" - ezconnect

forget tnsnames.ora in scenario. not in use when doing hostname connection.

you need service_name right. service_name not same sid.

sid name of server-side-processes on dbnode. fixed dbnode.

service_name abtraction. let's running 1 database on 2 dbnodes (rac) (shared storage), cluster expose service applications can connect - service_name. application doesn't have know underlying architecture.

connection service_name: user/pass@hostname:port/service_name  connection sid user/pass@hostname:port:sid -- note colon!

if running oracle database 12c have specify service_name, not sid. never use sid! application wants database service!

sql>-- identify database services (you can have many like) sql>-- finance,betting,app1,app2...appn,etc sql>-- yes 'should' run applications in 1 database (schema separation or pluggable)  sql>show parameter service_names  rem try ezconnect through sqlplus rem note! add ..(ezconnect,tnsnames).. sqlnet.ora file if not in.  c:\>sqlplus user/pass@hostname:port/service_name

Comments

Post a Comment

Popular posts from this blog

angularjs - ADAL JS Angular- WebAPI add a new role claim to the token -

i have created angular spa webapi backend using adal js authentication.as there no roles in ad, need manually add role claims in order give users access different api controllers. the roles stored in database. expecting inject claim through call webapi after authentication ad. webapi code might this. identity.addclaim(new claim("role", "user")); var ticket = new authenticationticket(identity, props); var accesstoken = startup.oauthbeareroptions.accesstokenformat.protect(ticket); is possible replace adal idtoken new token? is viable solution or there other better way handle this? as initial token generated azuread, possible edit token add new claim? appreciated. graph api supporting group claims. see here: http://justazure.com/azure-active-directory-part-4-group-claims/ if @ examples on page, users assigned groups , app can check group in claims. in current version of portal, need app manifest , modify it.
Read more

node.js - Using Node without global install -

i'm working on few node & electron (atom shell) projects , i'm curious how them work without user having install node globally. i've seen few applications including node directory in project contains node.exe binary. how go setting node project use binary? edit: thought should add, i've searched everywhere answer this, unrelated results.
Read more

php - CakePHP HttpSockets send array of paramms -

i problem when make request (i can request). $link = 'http://uri/path/?param1=1&sid=2&sid=3&sid=4' $http = $httpsocket = new httpsocket(); $res = $httpsocket->get($link); if check request pr($http); i see : [line] => /url/path/?param1=1&sid%5b0%5d=2&sid%5b1%5d=3&sid%5b2%5d=4 http/1.1 and i'm getting empty response because server doesn't know parameters sid%5b0%5d=2 when try send parameters array : $data = array('param1' => '1', 'sid' => array('2','3', '4')); i see same changes %5b0%5d - additional indexes. how fix it? unfortunately , can not change server side, if send request in browser, i'll normal response in json format. when make request, can parameters this: $param1 = $_get['param1']; $sid= $_get['sid']; tip: use diferente names parameters. have multiples sid. use sid1, sid2, sid3... update: can parameters this:...
Read more