OVERVIEW

T Code Description
DB02 -- Table and Indexes Monitor
DB04 -- DB Performance Monitor
DB12 -- Backup logs
DB13 -- DBA Oracle Planning Calendar
DB16 -- Overview of Database Check Messages
ST02 -- Tune Summary
ST03 -- Worload: Statistical Records
LISTSCHEMA -- List Schemas
RSDCUBE -- To edit Infocube
PFCG -- Authorisation
RSSM -- Authorisation Objects
RRMX -- Business Analyser Loader
RSZDELETE -- To Delete Query Elelements
RSCUSTV4 -- BEx Values(To View/Change Global BEx Settings)
SCC4 -- Client Overview
RS12 -- Overview of master data locks
RSA1 -- Administrator’s Workbench
RSA5 -- Transfer Business Content DataSources
RSD1 -- InfoObject Maitenance
RSH1 -- Heirarchy's
RSDS -- keyfigures
SQ02 -- Infosets
RSISET -- Infosets
RSDDV - Maintain Aggregates
RSRTRACE -- Configuration Tool(Trace)
RSRCACHE -- To monitor/define Query Cache
BW30, SP17 -- Access modes for Query's(new, stored, hybrid, static)
RSMO -- Admin Work Bench Monitor
RSOR -- Metadata Repositoty
RSORBCT -- Bussiness Content
RSBBS -- Query Jump Targets
RSO2 -- Generic Data Extraction Tools. Maintain /Create datasource
RSQ02 -- Maintain Infosets transactions
RSQ10 -- Roles for Infoset query
RSRV -- Analysis and repair of BW Objects
RSSM -- Reporting Authorisation Objects
RSRT -- Query read Mode and analysis
RSZC -- Copy Queries between cubes
RSZDELETE -- Delete queries and workbooks
RSZV -- Maintaining variables
RZ10 -- Maintain profile parameters
RZ20 -- CCMS monitoring
SALE -- IMG for ALE
SBIW -- Implementation Guide
SCC4 -- Display/Add Client
SCCL -- Copy Client
SGEN -- SAP Load Generator
SPAD -- Spool Administration
ST02 -- Database Tune Summary
ST03 -- Workload Monitor
ST04 -- DB Performance Monitor
STMS -- Transport Manager
SU01 -- Create new user
SU10 -- Mass User Maintenance
RSA5 -- To Install datasources from Bussinesscontent
RSA6 -- Subsequent Process Datasources
RSA9 -- To Transfer application component heirarchy
RSA3 -- Extractor checker(To check datasource)
LBWE -- LO Data Extraction: Customizating Cockpit
LBWF -- BW Log
LBWG -- To delete Setup Tables
OLI*BW -- To fill Setup Tables( * --> Application Component)
OLI1BW -- To fill Setup Tables - Material Moments
OLI2BW -- To fill Setup Tables - Material Moments
OLI3BW -- To fill Setup Tables - Purchase Orders
OLI7BW -- To fill Setup Tables - Sales Orders
OLI8BW -- To fill Setup Tables - Deliveries
OLI9BW -- To fill Setup Tables - Billing
NPRT -- To see setup log
SLG2 - To delete expired logs
RZ20 - To see log for Process Chains
SM62 -- To Create an Event
SE93 -- To view Transaction Codes
SNOTE -- To implement SAP Note
OB08 -- Currency Exchange Rates - Overview
SMQ1 - qRFC Monitor for the outbound queue. You can use this to monitor the status of the LUWs in the outbound queue.
SMQ2 - qRFC Monitor for the inbound queue. You can use this to monitor the status of the LUWs in the inbound queue.
SMQS – You can use the Outbound Queue Scheduler to register, deregister, and exclude destinations.
SMQR – You can use the Inbound Queue Scheduler to register and deregister queues.
http://help.sap.com/saphelp_470/helpdata/en/0c/275c3c60065627e10000000a114084/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/76/e12041c877f623e10000000a155106/frameset.htm

Need more check @ https://www.sdn.sap.com/irj/sdn/wiki?path=/display/BI/BI+FAQ+-+Important+Transaction+Codes+in+SAP+Business+Intelligence&

https://www.sdn.sap.com/irj/sdn/thread?threadID=19879

-- More info @ Implementing Correction