Wednesday, July 27, 2016

BIP: Report Usernames

 

There was a simple requirement to print the login name of the user running a BIPublisher report on that report itself. This got me hunting. There are tonnes of ways to get the login name from an oracle database, but because of the way BIP uses the DB and runs the SQL, not all of those ways would give the right answers. cleartext.blogspot.com

Simplest way, use the  <?$XDO_USER_NAME?>  parameter n your template.

But my requirement was to enforce data security on the report, to ensure the logged in user sees only the records he should see. This meant fetching the username at the SQL itself.

One sure shot way to do this is to use :XDO_USER_NAME in the SQL. This will fetch the userid of the logged in user. cleartext.blogspot.com

And there is one more way.

Use the sys_context ('userenv','CLIENT_IDENTIFIER') CLIENT_IDENTIFIER function in the SQL. cleartext.blogspot.com

image

 

To get all the sys_context parameters, this SQL can be used. cleartext.blogspot.com

select
  sys_context ('userenv','ACTION') ACTION,
  sys_context ('userenv','AUDITED_CURSORID') AUDITED_CURSORID,
  sys_context ('userenv','AUTHENTICATED_IDENTITY') AUTHENTICATED_IDENTITY,
  sys_context ('userenv','AUTHENTICATION_DATA') AUTHENTICATION_DATA,
  sys_context ('userenv','AUTHENTICATION_METHOD') AUTHENTICATION_METHOD,
  sys_context ('userenv','BG_JOB_ID') BG_JOB_ID,
  sys_context ('userenv','CLIENT_IDENTIFIER') CLIENT_IDENTIFIER,
  sys_context ('userenv','CLIENT_INFO') CLIENT_INFO,
  sys_context ('userenv','CURRENT_BIND') CURRENT_BIND,
  sys_context ('userenv','CURRENT_EDITION_ID') CURRENT_EDITION_ID,
  sys_context ('userenv','CURRENT_EDITION_NAME') CURRENT_EDITION_NAME,
  sys_context ('userenv','CURRENT_SCHEMA') CURRENT_SCHEMA,
  sys_context ('userenv','CURRENT_SCHEMAID') CURRENT_SCHEMAID,
  sys_context ('userenv','CURRENT_SQL') CURRENT_SQL,
  sys_context ('userenv','CURRENT_SQLn') CURRENT_SQLn,
  sys_context ('userenv','CURRENT_SQL_LENGTH') CURRENT_SQL_LENGTH,
  sys_context ('userenv','CURRENT_USER') CURRENT_USER,
  sys_context ('userenv','CURRENT_USERID') CURRENT_USERID,
  sys_context ('userenv','DATABASE_ROLE') DATABASE_ROLE,
  sys_context ('userenv','DB_DOMAIN') DB_DOMAIN,
  sys_context ('userenv','DB_NAME') DB_NAME,
  sys_context ('userenv','DB_UNIQUE_NAME') DB_UNIQUE_NAME,
  sys_context ('userenv','DBLINK_INFO') DBLINK_INFO,
  sys_context ('userenv','ENTRYID') ENTRYID,
  sys_context ('userenv','ENTERPRISE_IDENTITY') ENTERPRISE_IDENTITY,
  sys_context ('userenv','FG_JOB_ID') FG_JOB_ID,
  sys_context ('userenv','GLOBAL_CONTEXT_MEMORY') GLOBAL_CONTEXT_MEMORY,
  sys_context ('userenv','GLOBAL_UID') GLOBAL_UID,
  sys_context ('userenv','HOST') HOST,
  sys_context ('userenv','IDENTIFICATION_TYPE') IDENTIFICATION_TYPE,
  sys_context ('userenv','INSTANCE') INSTANCE,
  sys_context ('userenv','INSTANCE_NAME') INSTANCE_NAME,  cleartext.blogspot.com
  sys_context ('userenv','IP_ADDRESS') IP_ADDRESS,
  sys_context ('userenv','ISDBA') ISDBA,
  sys_context ('userenv','LANG') LANG,
  sys_context ('userenv','LANGUAGE') LANGUAGE,
  sys_context ('userenv','MODULE') MODULE,
  sys_context ('userenv','NETWORK_PROTOCOL') NETWORK_PROTOCOL,
  sys_context ('userenv','NLS_CALENDAR') NLS_CALENDAR,
  sys_context ('userenv','NLS_CURRENCY') NLS_CURRENCY,
  sys_context ('userenv','NLS_DATE_FORMAT') NLS_DATE_FORMAT,
  sys_context ('userenv','NLS_DATE_LANGUAGE') NLS_DATE_LANGUAGE,
  sys_context ('userenv','NLS_SORT') NLS_SORT,
  sys_context ('userenv','NLS_TERRITORY') NLS_TERRITORY,
  sys_context ('userenv','OS_USER') OS_USER,
  sys_context ('userenv','POLICY_INVOKER') POLICY_INVOKER,
  sys_context ('userenv','PROXY_ENTERPRISE_IDENTITY') PROXY_ENTERPRISE_IDENTITY,
  sys_context ('userenv','PROXY_USER') PROXY_USER,
  sys_context ('userenv','PROXY_USERID') PROXY_USERID,
  sys_context ('userenv','SERVER_HOST') SERVER_HOST,
  sys_context ('userenv','SERVICE_NAME') SERVICE_NAME,
  sys_context ('userenv','SESSION_EDITION_ID') SESSION_EDITION_ID,
  sys_context ('userenv','SESSION_EDITION_NAME') SESSION_EDITION_NAME,
  sys_context ('userenv','SESSION_USER') SESSION_USER,
  sys_context ('userenv','SESSION_USERID') SESSION_USERID,
  sys_context ('userenv','SESSIONID') SESSIONID,
  sys_context ('userenv','SID') SID,
  sys_context ('userenv','STATEMENTID') STATEMENTID, cleartext.blogspot.com
  sys_context ('userenv','TERMINAL') TERMINAL
from dual
     
Try running this on Oracle Live SQL

Monday, July 11, 2016

SQLFiddle (for Oracle) is broken. Try Oracle Live SQL

 

BI Publisher reporting work involves a lot of SQL. And often (in the Oracle world) one needs a quick way to try an Oracle function in a quick sandbox like system. For  long time, I have been using SQLFiddle, which provides a simple browser UI to create schema and run SQLs on them. But for many months now, the Oracle support on SQLFiddle has been broken. And I was looking for alternatives.

Turns out, Oracle themselves provides an excellent replacement tool to create schemas and run SQLs. Free for anyone who has an oracle.com login. That includes all customers and vendors working on their products. cleartext.blogspot.com

Go to Oracle Live SQL. The SQL worksheet page there can be used to run any SQLs, and its on a 12c DB server. cleartext.blogspot.com

 

image

There is a simple schema designer to create schema. Or you can also use standard DDL functions. Turns out , this is actually a simple Apex application. cleartext.blogspot.com

 

image

cleartext.blogspot.com

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