How do you store pictures in a database?
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what is analyze command ? what kind of statistics does it generate?
What is oracle rownum?
How can I convert single byte kana characters into multi byte kana characters and vice-versa.
Can we convert a date to char in oracle and if so, what would be the syntax?
How many categories of data types in oracle?
Explain the truncate in oracle?
1. How actually index will work ? 2. Why do people prefer mostly bitmap index and btree index in datawarehouse ? 3. If I use the column in aggrigate functions like max,min,count and avg and if I have a index created on that column, will it increases the performance ?
what are pseudocolumns?
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How to retrieve values from data fields in record variables?
What is cluster Key ?
write a sql query following source looking like below column1 column2 101,102,103 abc,def,ghi 1001,1002,1003 a,b,c i want the output column1 column1 101 abc 102 def 103 ghi 1001 a 1002 b 1003 c