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triparkansasData Management

Oct 31, 2013 (3 years and 11 months ago)

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Siva Gudipati




OBJECTIVE


Dynamic IT consultant with advanced technical knowledge, in the field of Data Warehousing, ETL, Data
Analysis and modeling, along with quick adaptability to new technologies seeking challenging position
where I can be producti
ve right away.


PROFESSIONAL SUMMARY




Total

of
8
+

years

of
IT
Experience
especially
in
Client/Server business systems

and Decision
support Systems(DSS)
analysis
,
design, development, testing

and
implementation



7
+
years

of
Strong

experience in
Extraction Tr
ansformation

and
Loading

(
ETL
)
applications for
Data Warehouses

and Datamarts

using
Data
S
tage

8.1/8.0/ 7.5/ 7.1/
6.0XE/5.2/EE

(DataStage Manager, DataStage Designer, DataStage Director, Datastage
Administrator, Version Control).



Experience in
Ascential Qua
lity stage

7.5




Extensively worked
on IBM InfoSphere (Data stage, Quality stage) / Information Analyzer 8.1



Expertise in

Logical and Physical Data Modeling and Design




Migrated jobs from 7.5 to 8.1

and developed new data stage jobs using data stage/qualit
y stage
designer.



Excellent technical and analytical skills with clear understanding of design goals of
ER modeling
for OLTP and dimension modeling for OLAP.



Experience in implementing
Best Practice in Data Modeling
.




Extensive Experience in identifying
Fa
ct & Dimension
tables

and working with
Star & SnowFlake

Schema’s.



Extensively worked on Information Analyzer to perform
Column Analysis
,

Table Analysis,

Primary Key Analysis

and developed rules to identify overlapping data across domains



Experience in work
ing with
Shared

and
Local Containers



Strong working knowledge with Oracle database Design and
SQL Scripting, PL/SQL
.



Designed advanced
SQL queries, stored procedures, packages, scripts, cursors

Create, maintain,
modify, and optimize Oracle databases.



Devel
oped complex

functions, named and unnamed blocks

by using
PL/SQL
.



Efficient in all phases of the software development lifecycle, coherent with
Data Cleansing, Data
Conversion, Performance Tuning, Unit Testing, System Testing, User Acceptance Testing
.



Desig
ned Mapping documents ETL architecture documents and specifications.



Analyzed the Source Data and designed the source system documentation.
.



Involved
In JAD/RAD/JAR Sessions
.



Worked on
LSMW to transfer data from legacy systems

such as
spreadsheets,
seque
ntial files etc. to R/3 system



Extensive experience in loading high volume data, and performance tuning.



Set up development,

QA & Production

environments.




Extensive experience i
n Dimensional modeling techniques
.



Education













Bachelors in Computer Engine
ering



TECHNICAL SKILLS



ETL Tool

IBM Datastage 8.x,
Ascential Datastage 7.5.2/6.0, Qu
alityStage,
ProfileStage, WebSphere Information Server 8.0

Databases

Oracle 8i/9i/10g/11g, SQL Server 2000/20
05/2008, DB2, Tera
data

Data Modeling

Star Schema, Snow
Flake Schema, Erwin, MS Visio, Fact and
Dimension Tables

Reporting tools

OBIEE and Business objects 6.5
, SAP R/3 6.0 ECC

Languages

SQL, PL/SQL, C,
C++,
Java, HTML, XML, Jscript, VB Script
and Shell script

Operating Systems

Windows 98, 2000
NT, 2003 server, XP, UNIX, LINUX, HP
-
UX
11.23, SOLARIS 10.x

Other Tools

TOAD, SQL Developer, Tivoli Load leveler3.4.1.2
and Autosys.



Professional Experience


Client:
Johnson Controls Inc(JCI), Milwakee, WI

Aug 2011
-
Current

Role
: Sr.SAP Datastage consultant


JCI
is a manufacturing company which used to build the batteries and supplies them all over the world.
Client is planned to discontinue the old legacy system MFG PRO and

replace it with SAP ECC system. This
would be done for 4 plants. When JCI goes live on SAP for the four plants, the reporting which used to run
MFG PRO will get stopped. Hence JCI wanted the interim reporting. Here we used to extract the data from
ECC sys
tems using ABAP Stage and load it into Oracle table, which were used for reporting purpose.


Responsibilities:




Extracted the data from source

SAP

systems and loaded it into staging area, after cleansing and
validation loaded into
Oracle database.




Created

Datastage jobs using different stages like
Transformer, Aggregator, Sort, Join, Merge,
Lookup, Data Set, Funnel, Remove Duplicates, Copy, Modify, Filter, Change Data Capture,
Change Apply, Sample, Surrogate Key, Column Generator, Row Generator, Etc.



Worke
d extensively with ABAP Stage to extract the data from SAP ECC System and do
transformations, finally loaded into Oracle database.



Used RFC data transfer method to extract the data from SAP using ABAP Stage and loaded it to
Sequential files.



Worked closely

with Architect for the requirement gatherings and experience in working with
offshore team to pass the requirements and get the things done on time.



Experience in migrating the jobs from Dev environment to QA environment.



Extensive experience in identify
ing

the

errors corresponding to
ABAP Stage
.












Extensive experience in working with Datastage tools like

Datatage Designer
and

Datastage
Director for

developing the jobs
and

view the log for errors.



Tuned the parallel jobs using appropriate partitioning techn
iques used in the jobs and worked closely
with DBA to create the proper indexes to handle the long run jobs.



Extensive experience in writing SQL to check the data loaded by DS Jobs.



Experience in working with Routines



Created DataStage Parallel Jobs to

Fac
t

and
Dimension Tables
.




Experience in generating the
Surrogate key

using key management functions while loading the data into
Oracle

in
Datastage 8.
5

Version.



Experience in creating

Technical Spec documents as well as Unit test document



Used TC’s in SAP t
o check the data in SAP Tables and ABAP Program codes generated from ABAP
Stage.



Experience in solving many issues while working with the ABAP Stage.


Environment:

IBM WebSphere Data stage 8.5, IBM AIX Server, SAPR/3 6.5,
SQL Developer 8.0,
Toad 9.5, HP Q
uality Center 10.0, Unix, Windows XP, Oracle 10g



Client
: Brandon Associates
,
Farmingdale,
NY


May 2011
-
Aug 2011


Responsibilities:




Designed and developed the jobs using

DataStage

Designer

for e
xtracting, cleansing, transforming,
integrating and loading

data using various stages like
Aggregator, Funnel, Change Capture,
Change Apply and copy
.



Worked with

DataStage

Director

to schedule, monitor and analyze performance of individual stages
and run

D
ataStage

jobs
.



Developed and supported the
Extraction, Transformation and Load process (ETL)
for a data
warehouse from various data sources using

DataStage

Designer



Designed developed job sequential to run multiple jobs



Worked with

DataStage

Administrator

to set up
environment variables
.




Worked with

DataStage

Director

for

testing and monitoring

the executable jobs



Developed

DataStage

jobs to convert the data obtained in
Cobol format

from Emblem Health to
Oracle Database to be used for further data cleansin
g processes.



Written

various
stored procedures

for testing the application.



Involved in writing
SQL Queries

to test the data from the

DataStage

jobs.



Tuned the Parallel jobs for better performance



Developed Parallel jobs using various stages like
Join, Mer
ge, Funnel, Lookup, Sort,
Transformer, Copy, Remove Duplicate, Filter, Peek, Column Generator, Pivot and Aggregator
stages

for grouping and summarizing on key performance indicators used in decision support
systems



Experience in working with
Production Sup
port



Experience in working with
Copybooks



Environment:

IBM WebSphere Data stage 8.1
,
Ascential Datastage 7.5.2
,
UNIX Shell Scripting (Korn
/KSH),

PLSQL Developer 8.0, Visual Source Safe 2005,
HP Quality Center 10.0,
Unix, Windows XP,
Oracle 10g

and Autos
ys













Client
: IBM, NC





Jan
2011
-
May 2011


Role
: Sr.SAP Datastage consultant


This project ultimate goal is to extract the data from Legacy syste
ms like Enterprise Director(DB2) and load
it into SAP R/3. Here the extracted data contains, employees information which will need to be loaded into
IBM blue pages. Group key is a key, which covers a country to be extracted each time. The worldwide
employe
es information is extracted from legacy systems and loads into SAP. Group key covers some region
of countries every time and we extract those countries employees information and load it into SAP.


Responsibilities:



Designed and Developed

DataStage

jobs in
Server Edition initially and then converted those to
parallel jobs using Enterprise Edition 8.1

so as to tune the overall performance of system.



E
xtract
ed

data from legacy systems like

DB2 database, cleanse it, transform it as per business

requirement and
populate the data into flat files.



Extracted the data from Legacy system Enterprise directory, DB2 using

JtranformerPX Stage(Java
LDAP Stage).



Used DataStage Director to Run and Monitor the Jobs performed,

automation of Job Control using
Batch logic to exe
cute and schedule

various DataStage jobs.



Worked extensively with

both Parallel and Server jobs
.



Extensive experience in working with Datastage tools like

Datastage Designer and Datastage
Director for developing the jobs and view the log for errors.



Knowle
dge of

configuration files for Parallel jobs.



Used Partition methods

and collecting methods for implementing

parallel processing
.



Improved the performance

of jobs

by four times by using
Multi node Configuration
(4
-
nodes)



Scheduled job runs using

DataStage d
irector, and used DataStage director for debugging and testing.



Used Shared Container for repeated business logic, which is used

across the project.



Extensively used Parallel Stages like

Row Generator, Column Generator, Head, and Peek for
development and d
e
-
bugging purposes.



Experience in working with

Switch stage

and
Java LDAP Stage
.



Extensive experience in developing the Sequence jobs



Experience in working with Routines.



Experience in working with
Shared and Local Containers



Experience in combing the
mult
iple jobs into Single job



Involved in

Unit testing, Functional testing and Integration testing and provide process run time



Prepared

Data Volume

estimates.



Used

BAPI Stage

to load the data from Datastage to SAP by calling

function module

in

SAP.



Made Bapi
Stage

as an
Active stage

from Passive stage.



Used

TC’s on SAP to check the data, whether it properly loded into SAP or not.



Used

Parallel Extender for splitting the data into subsets, utilized Lookup, Sort, Merge and other
stages to achieve job performance
.



Experience in creating

Technical Spec documents as well as Unit test document.


Environment:

IBM WebSphere Data stage 8.1, IBM WebSphere Data stage 8.5, Ascential Datastage
7.5.2, IBM AIX Server, SAPR/3 6.5 , WINSQL, DB2, Oracle 10g, Unix,Windows XP



Cl
ient:
Vision Service Plan
(VSP)
, CA

Aug

2010
-
Dec 2010











Role
: Sr.SAP Datastage

consultant


VSP

is a top rated

eye insurance company in
the
United States, which provides high
-
qual
ity, cost
-
effective
eyecare benefits

and it launched VSP Global enterprise brand recently, which offers world
-
class products
and services to eyecare professionals and employers through group of leading companies providing eyecare
coverage,

access to fram
e styles and brands, and design of custom interiors. The project ultimate goal was to
extract data from the legacy systems like DB2 and do some transformations if needed and load it into
centralized database
SAP

R/3
.


Responsibilities:




Extracted the data

from source systems and loaded it into staging area, after cleansing and validation
loaded into
SAP
.




Created Datastage jobs using different stages like
Transformer, Aggregator, Sort, Join, Merge,
Lookup, Data Set, Funnel, Remove Duplicates, Copy, Modify,

Filter, Change Data Capture,
Change Apply, Sample, Surrogate Key, Column Generator, Row Generator, Etc.



Extensively used Parallel Stages like
Row Generator
,
Column Generator
,
Head
,
and Peek

for
development and de
-
bugging purposes.



Knowledge of
configurat
ion

files for
Parallel jobs
.



Worked with
Data Sets

and used
Changes Capture

and
Changes Apply

stages with them



Migrated the jobs from

7.5 to 8.1

and developed new data stage jobs using data stage/quality stage
designer

Imported and exported repositories ac
ross projects.



Extensive experience in working with
Datastage Designer for developing jobs

and
Datatsgae
Director

to view the log file
for execution errors
.



Created DataStage Parallel Jobs to

Fact

and
Dimension Tables
.




Experience in generating the
Surroga
te key

using key management functions while loading the data into
SAP

in
Datastage 8.1

Version.



Wrote
Shell Scripts

to run data stage jobs, PL/SQL blocks
.




Wrote

SQL queries for checking the data from Source system as well as Staging.



Used Parallel Extende
r
for splitting the data into
subsets
, utilized
Lookup, Sort, Merge

and other
stages to achieve job performance
.



Imported
metadata
, table definitions and
stored procedure

definitions using the Manager.



Extensive experience in working with Datastage tools
like

Datstage Designer
and

Datastage
Director for

developing the jobs
and

view the log for errors.



Used
Tivoli load leveler scheduler

to run more jobs in less time by matching each job’s processing
needs and priority.



Experience in working with
Flatfiles
,D
B2

and
Oracle

datasources
.



Created FTP job

to extract the data from legacy system.




Used
Datastage plugins to load the data into SAP(IDOC LOAD)



Created a job using

IDOC LOAD
stage

for posting the materials
in
to

SAP.




Extensive experience in creating the se
gments in
IDOC LOAD
stage

and
populating the segments
according to the requirement

on
SAP



Used TC’s on SAP to process the IDOCS .



Extensive experience in identifying

the

errors in segments on SAP
.


Environment
:


IBM WebSphere Data stage

8.1,

Ascential Data
stage 7.5.2
,

SAPR/36.0ECC

,

UNIX Shell Scripting
(Korn /KSH),

WINSQL
, Oracle 9i/10g,
Teradata,
Unix
,
Windows XP
, and Tivoli Load leveler 3.4.1.2












Client
:
Nationwide
Health
Insurance
,

OH





Feb
2009
-

Aug 2010


Role
:
Sr
. ETL Con
sultant


Nationwide

offers a

variety of supplemental
health insurance
, general liability, travel insurance and travel
-
related coverage, group accident protection and benefit options to suit all of your health, travel

and group
accident insurance needs.

The

project was on Greenfield Program Management for building data warehouse
for
Nationwide Health Insurance

in various subject areas like financial transactions, claims information
and agreements
.

Responsibilities:




Involved in understanding the business req
uirements

with business team

to develop
ETL
procedures
.




Extensively used DataStage Tools like
Infosphere DataStage Designer
,
Infosphere DataStage
Director

for developing jobs and to view log files for execution errors.




Analyzed Data Sources to perform
Me
tadata Validation
.



Designed /Wrote tech specifications (
Source
-

Target Mappings
) for the ETL Mappings along with
the unit test scripts.

I



Experience in working with
XML

Files and
VSAM(Virtual Storage Access Method)



Prepared master sequences with a Routine
Activity with a
stored procedure

called in it.



Design the
Logical and Physical Data Model

for the Operation Data Store, and the Data Mart.



Data modeling and design of data warehouse and data marts in
Snowflake and Star scheme
methodology
with confirmed an
d granular dimension and fact tables.



Used DataStage as an ETL tool to extract data from sources systems, loaded the data into the SQL
Server database



Used
Information Analyzer

for column analysis, primary key analysis and for profiling of data.



Using Key
Management functions
Surrogate Keys

were generated for composite attributes while
loading the data into Data Warehouse.




Scheduled job runs

using
DataStage director
, and used DataStage director for debugging and
testing.



Created
shared containers

to simpl
ify job design



Extensively worked on

Information Analyzer

for Integration of data by analyzing business
information to assure it is accurate, consistent, timely and coherent.



Setup UNIX groups and defined UNIX user profiles and assigned privileges.



Extensi
vely used
DataStage Manager, Designer, Administrator, and Director

for creating and
implementing jobs.



Developed various jobs using
ODBC, Hashed file, Aggregator, Sequential file, PIVOT, IPC
stages.



Imported various Application Sources (
Database tables, fl
at files, COBOL files, XML files
...Etc)
into
Ascential Datastage Manager
.



Created parameters to run the same job for different schemas



Used version Control for data stage to track the changes made to the data

stage project components
and for protecting job
s by making read only.




Developed
Server jobs

using stages
ODBC
,
Link Partitioner
,
Aggregator
,
Transformer
, Link
Collector, and Hash File etc..



Involved in Unit testing, Functional testing and Integration testing and provide process run time.



Migrated jobs

from 7.5 to 8.1



Used DataStage

Parallel Extender

parallel jobs for improving the performance of jobs












Environment:


IBM WebSphere Data stage and Quality Stage 8.1,

Ascential Datastage7.5/EE,

SQL Server 2000/2005,
Business Objects XIR 2/6.5, Oracle 10g,Sy
base, PL/SQL,Toad, UNIX, Autosys 4.5 and
Windows

XP
.



Client
:
Perot Systems. TX






Mar

2007
-

Dec 2008


Role
:
Sr. ETL Consultant


Perot Systems is a worldwide provider of informa
tion technology services and business solutions, serving the
specific needs of its clients in healthcare, government, manufacturing, banking, insurance and other
industries.


Responsibilities:




Analysis and design of ETL processes.



Identified/documented da
ta sources and transformation rules required to populate and maintain data
warehouse content.



Created Data Stage server jobs to load data from sequential files, flat files and MS Access.



Used
DataStage Manager

for importing metadata from repository, new jo
b categories and creating
new data elements.




Performed ETL coding using
Hash file, Sequential file, Transformer, Sort, Merge, Aggregator
stages compiled, debugged and tested
. Extensively used stages available to redesign DataStage
jobs for performing the
required integration



Used the
Data Stage Designer

to design and develop jobs for extracting, cleansing, transforming,
integrating, and loading data into different Data Marts.



Prepared Data Volume estimates.



Defined the data definitions, and created the tar
get tables in the database.



Wrote routines to
schedule batch jobs

to obtain data overnight from various locations.



Mapped the source and target databases by studying the specifications and analyzing the required
transforms.



Troubleshooting jobs using the d
ebugging tool.



Analyzed the
performance

of the jobs and project and enhance the performance using standard
techniques.



Standardized the Nomenclature used to define the same data by users from different business units.



Created job sequences and schedules f
or automation.



Used
the DataStage Director and its run
-
time engine to schedule running the solution, testing and
debugging its components, and monitoring the resulting executable versions (on an ad hoc or
scheduled basis).



Used DataStage to transform the d
ata to multiple stages, and prepared documentation.



Provided data modeling support for numerous strategic application development projects.



Analyzed business functionalities and building the fundamental blocks.



Created ETL execution scripts for automating
jobs.



Worked on writing routines to read parameters from hash file at runtime.



The mappings were
Unit tested

to check for the expected results.



Documented the purpose of mapping so as to facilitate the personnel to understand the process and
incorporate th
e changes as and when necessary.











Environment:


Ascential Data Stage 7.1/6.0 Designer, Director, Manager, Windows NT 4.0, UNIX, COBOL, DB2
UDB 7.0, MVS Mainframe, Business Objects 5.0, Erwin 4.1, Microsoft Visio 2003.SAPR/34.7EE
,
Quality Stage



Client
:
Ca
pital One, Richmond, VA






Aug 2006


Feb 2007


Role
:
ETL/DataStage Consultant


This project Enterprise Data warehouse (EDW) includes developing Data warehouse from different data
feeds and other operationa
l data sources. This application is specifically designed for Financial and Securities
department of Capitol One.


Responsibilities:




Interacted with Management to identify key dimensions and measures for business performance.



Used the
ETL

Data stage Desi
gner to develop processes for extracting, cleansing, transforms,
integrating and loading data into data warehouse database.



Used Data Stage Designer to develop DataStage jobs, scheduled the jobs through DataStage director,
and run the jobs in the DataStage

Server.



Debugging of the Data Stage jobs using
DataStage Debugger
.



Developed stored procedures, functions
, triggers

and packages in PL SQL.



Used Hashed File stage to extract or write data, and as an intermediate file in a job, the primary role
of which wa
s to reference table based on a single key field.



Used Aggregator stages to classify data rows from a single input link into groups and compute totals
or other aggregate functions for each group.



Used
job sequence

and
scheduling

for automation.



Used
Aggreg
ator
stages to sum the key performance indicators used in decision support systems.



Migrated jobs from development to QA to Production environments.



Design
ed

Technical specifications

and Mapping documents with Transformation rules
.



Strong
experience in wor
king with

Data stage parallel Extender
.



Experience in Converting the Business Logic into Technical Specifications.

Environment:



Ascential Data Stage 6.0/5.1 Designer, Director, Manager, Windows NT 4.0, UNIX, Oracle 8i, PL/SQL,
Sequential Files, MS Access



Client:

Bayer Pharmaceutical, Pittsburgh, PA

Mar 2005


Jun

200
6


Role
:
DataStage
Consultant














The System is meant for automating and standardizing the operat
ions of the Dealers and Stocks.
Enterp
rise
Data Warehouse

is built, through which a critical mass of stocks and suppliers can benefit from aggregated,
accurate data and realize true cost savings and process efficiencies.
The standardized capability will provide an
automated procedure for gener
ating Clinical Sales & Market tables and Listing. This system will also provide
Bayer with standardized reporting process for clinical study data.


Responsibilities
:
-




Gathered business scope and technical requirements.



Worked with
DataStage

Designer
tool
in developing Stages and transformations to extract and load





the
data from flat files and oracle to oracl
e.



Created different stages for loading the data into targets.



Tuned DataStage

jobs for

better performance.



Extensively worked on stages and transforms.



Created DataStage jobs for daily
data loads
.



Worked on DataStage Administrator to create and manage user profiles.



Extensively worked on
Sales Analytics
.



Scheduled Batches on the DataStage
using DataStage Director and Manager.



Implemented
performance tuning

logic on targets, sources, and stages to



provide maximum efficiency and performance.



Extensively worked with DataStage and their components for
Data cleansing

and Conversion a
nd
loaded data into target database.



Written Data loading stored procedures, functions using
PL/SQL

from Source systems into
operational data storage.



Interacted with Management to identify key
Dimensions

and
Measures

for business performance.


Environment
:



DataStage 5.1
(Administrator, Manager, Designer, Director)
, Windows NT, Ora
cle
8i,

SQL*Loader,

Erwin 3.5, SQL Server 7.0, DB2,
Cognos 5.0, SQL, PL/SQL



Client
:
Harley Davidson & Co., Groton, CT

Apr

2004



Feb

2005



Role
:
Datastage Consultant


The primary objective of the project is to develop sales and marketing system making extensive use of Data
Marts. The purpose of the project was to help the compa
ny to make improvements in their new model by
going through the sales history and decide the marketing strategy for the same model. The objective is to
extract data stored in different databases and load into oracle system.


Responsibilities:




Involved

in system analysis and design of the Data warehouse.



Designing the Target Schema definition and ETL process using Data stage.



Worked with Data Stage Manager to import/export metadata from database, jobs and routines
between Data stage projects



Used Da
ta stage Director to schedule, monitor, cleanup resources and run job with several invocation
ids.



Used Data Stage Administrator to control purging of Repository and Data Stage client applications









or jobs they run, cleanup resources, execute TCL commands,
move and manage or publish jobs from
development to production status



Wrote Batch Jobs to automate the System Flow using DS Job Controls with restart
-
ability to of jobs
in a Batch.



Developed user defined Routines and Transforms by using Data stage Basic la
nguage



Used TCL commands in DS Jobs to automate Key Management of surrogate keys and used Data
stage Command Language 7.0



Developed various SQL scripts using SQL Plus.



Involved in Unit testing, System and Integration testing



Wrote UNIX shell Scripts for fi
le validation and scheduling Data Stage jobs



Designed universes to support the reports for the user using Business Objects6.0



Worked on troubleshooting, performance tuning and performances monitoring for enhancement of
DataStage jobs and builds across D
evelopment, QA and PROD environments
.


Environment:



Data stage 6.0, Business Objects6.0 on IBM AIX 5.3





Client
:
State Bank of India, Pune, India






Jun 2003



Mar

2004


Role
:
Database Consultant


The Banking Application was

developed for State Bank of India to meet the requirements of bank
transactions such as deposits, loans and account maintenance. This Application had different modules like
Master Maintenance, Deposit Maintenance, and Loan Maintenance. The loan maintenanc
e includes loans
such as housing, industrial and agricultural loans.



Responsibilities:




Responsible for System analysis, understanding of business requirements, expertise in
understanding the complete information flow, database concepts, Normalization an
d creation of
Database objects




Developing a Deterministic Optimisation Model based on resource constraints



Presented recommendations to Senior and Line Management



Designed and developed front end applications by using Developer/2000



Developing stored proc
edures and database triggers and used user exits and PL/SQL interfaces to
access foreign functions.



Using triggers for block processing, interface events, master
-
detail relationships, message handling,
mouse events, navigation, query
-
time processing, trans
actional processing, validation and key
processing.


Environment:


Oracle 7.x, Sql
Plus, PL/SQL, Developer/2000.