What is snapshot is too old? Give and example for better understand.
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what is primary key and foreign key when and where have to use
write a query to count number of alphabets in given string for example "APPLE" write a query to generate sequence from 50 to 100 write a query to display in single string "ABCD,EFGH,IJKL,PQRS"
Explain the use of rows option in imp command.
What is coalesce function?
Explain oracle 12c new features for developers?
How to create a new table in your schema?
What is difference between truncate and delete?
How to bring a tablespace online?
What the is the diff between local index and global index. give some example.
How to create id with auto_increment on oracle?
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what is a Nested Loop join?