what are the differences between an exclusive lock and a shared lock?
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what are parameter, we can check after creating a database in terms of QC and for each tables what should be the parameters for QC and QA?
Explain meant by 3-tier architecture?
Explain types of indexing in dbms?
How is foreign key commands related to primary key?
What is the instance of a relation?
What will be the maximum size of an extent of a segment if the tablepac's default storage values are specified as (initial 8K next 16k minextent 4 pctincrease 100).Explain.
What are the disadvantages of a query?
Explain 2nf?
write a query to retrieve the last day of next month in oracle.
What is rdbms architecture?
What is the use of ROWS option in EXP command ?
i have table as source table and flat file as target i need yo perform some logic in loading the data. is it posible? and one more thing the no of fields in source is 200+ and for target is 30+ how i can map them.........
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