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murugan alagappa university rdbms madan example program keys example for transaction transaction management discreationary transaction transaction declaration and c autonomous transaction pl/sql transaction transaction control declaratio example queries introduction to database manag database system applications purpose of database system view of data data abstraction package specification section package body section syntax for package creation executing a packages deleting a package oracle packages definition of a cursor creating a cursor declaring the cursor opening the cursor attributes of an explicit curs attributes of an implicit curs accessing the cursor rows closing a cursor steps for executing a cursor transaction specializations specialization generalization extended e-r features weak entity sets entity-relationship design lss entity-relationship diagrams participation constraints constraints mapping cardinalit constraints attributes relationship sets entity sets the entity-relationship model database design and er model storage manager data structure and querying semi structured data model object based data model normalization the entity relationship model database design for banking en design process database design relational databases data definition language data manipulation language database languages data model instance and schema renaming synonym dropping synonym removing synonym deleting synonym structure of pl/sql block declaration section variable constant execution section exception how pl/sql works control structures if then command loop command loop with if loop with when definition of user user creation commands grant command deleting a user privileges viewing a users revoke object privileges system privileges and object p creation of role granting privileges and roles view the roles of a user deleting a role synonym definition create synonym command creating synonym for table for loop command validating data entry replicating with trigger - ins obtaining information about a replicating trigger with delet definition of stored procedure procedures trigger-difference syntax for procedure creation procedure with no argument procedure with argument sample pgms using procedure drop procedure definition of function deifference: function and proc syntax for creating function sample program using function definition of packages while command integrating sql in pl/sql pgm. definition of trigger difference between trigger and advantages and disadvantages o components of a trigger types of trigger table trigger row level or statement level instead of trigger system event trigger user event trigger syntax for creating a trigger modifying a trigger deleting a trigger reference to column inside definition of transaction physical layer -guided transmission media tcp/ip reference model osi reference model interface and protocol service primitives connection-less connection-oriented design issues protocol hierarchies network software personal area network internetwork metropolitan area network wide area network local area network pont-to-point broadcast uses of computer network distributed system internet and world wide web introdutction to computer network alagappa govt. college query transformation distributed query processing distributed transactions data fragmentation data replication distributed data storage homogeneous and heterogeneous distributed databases alagappa government arts colle intra-query parallelism externally initiated operation peripheral initiated operation 8085 registers bus diff. - address and data control bus data bus address bus 8085 bus organization microprocessor initiated opera microprocessor operation microprocessor architecture micro controller microprocessor global star iridium low earth orbit satellite global psositioning system medium earth orbit satellite vsat geo stationary satellite communication satellite light wave transmission infrared transmission millimeter micro wave transmission radio transmission the electro magnetic spectrum wireless transmission fiber optics co-axial cable twisted pair karaikudi alagappa government arts clg. rdbms practical group a rdbms practical count avg min max programming select drop table alter table create table e-r model and normalization database-design process fourth normal form multivalued dependencies lossless decomposition closure of a set higher normal forms third normal form bcnf dependency preservation boyce-codd normal form trivial functional dependency functional dependencies decomposition first normal atomic domains design alternative features of good relational da relational database design magnetic media inter-query parallelism handlings of skew partitioning techniques io parallelism introduction parallel databases interconnection network speedup and scaleup transaction server process server system architecture distributed database processin parallel database system client server database system database system architectures cursor handling trigger creation search address using function voters information rdbms lab group b computer science alagappa government arts clg delete updation insertion procedure without arguments procedure with arguments procedure book magazine employee table creation student table creation sql