database - Which version of oracle should I learn as a beginner? -


i beginner in oracle. have seen there many oracle version such xe, enterprises, personal, liet , on. learn oracle confuse oracle version should learn first?

xe, enetrprise, etc not versions, editions, windows home, professional, ultimate.

to start learning can begin oracle 12c xe edition.

here can see difference between editions: https://docs.oracle.com/database/121/dblic/editions.htm


Comments

Post a Comment

Popular posts from this blog

command line - Use qwinsta in PowerShell ISE -

i trying use qwinsta , rwinsta powershell code. when try run error "the term 'qwinsta' not recognized name of cmdlet, function, script file, or operable program." need able remotely on several machines without having add .dll's or modules other machines. tried terminal services powershell module, need able put on remote machines , not able that. within powershell ise how run qwinsta? not looking parse information gather it. following code have tried (which had found on site also): function get-tssessions { param( $computername = "localhost" ) qwinsta /server:$computername | #parse output foreach-object { $_.trim() -replace "\s+","," } | #convert objects convertfrom-csv } get-tssessions -computername "localhost" | ft -autosize best have running powershell ise (x86). when run command qwinsta there same error you. of course assuming have 64-bit os. th...
Read more

ruby - Net::HTTP extremely slow responses for HTTPS requests -

for reason, on development machine i'm getting very, slow responses https requests performed via net::http. i've tried restclient , httparty , both have same issue. seems have sprung nowhere. i've made these requests hundreds of times without issue, today unbearably slow. pry(main)> puts time.now; httparty.get('https://api.easypost.com/v2/addresses'); puts time.now; 2015-04-29 08:07:08 -0500 2015-04-29 08:09:39 -0500 as can see, response took 2.5 minutes. , it's not easypost api url. i've tried numerous ssl requests servers know can connect ( https://google.com , https://weather.com , etc.) , result in same behavior. also, noticed same thing happens requests redirected http https. now, check out non-ssl request: pry(main)> puts time.now; httparty.get('http://lookitsatravis.com'); puts time.now; 2015-04-29 08:12:22 -0500 2015-04-29 08:12:22 -0500 instantaneous. gives? guess configuration problem somewhere between ruby , openssl. i...
Read more

java - Incorrect order of records in M-M relationship in hibernate -

Image
i have 4 records in bridge table in mysql database. using @manytomany in hibernate, accurate order of employees incorrect incorrect of projects. following required material figure out doing mistake. this source. @entity @table(name="project") public class projectbean { @id @generatedvalue @column(name="project_id") private int projectid; @column(name="title") private string projecttitle; @manytomany(mappedby="projects") private collection<employeebean> employees; public projectbean() { employees = new arraylist<employeebean>(); } //getters & setters } @entity @table(name="employee") public class employeebean { @id @generatedvalue @column(name="employee_id") private int employee_id; @column(name="first_name") private string ...
Read more