Which command is used to delete a trigger?
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is it possible to pass an object or table to a procedure as an argument?
how can we write a column values horizontal by using sql stmt; ex: select name from table_name;(actual output) a b c d require output is a b c d
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What does select count (*) mean in sql?
Is postgresql a nosql database?
Why trigger is used in sql?
wtite down triggr not any entry on Sunday
1. is it possible to use the cursor atttibutes (%found ,% rowcount , %isopen , %notfound ) to our user defined cursor names ....... cursor cursor_name is select * from scott.emp if you use... cursor_name%found , %rowcount ,%isopen,%notfound...will it work... -------------------------- 2.what is the difference between the varray and index by table .. -------- 3. type type_name is table of number(8,3) index by binary_integer; identifier_name type_name; first , last , prior , next ,trim are the methods we can use it for the above type...simillary is there any way to apply for cursors... with thanks and regards..sarao...
Explain the uses of a database trigger?
How many clustered indexes can be created on a table?
source destination distance chennai bangalore 500 bangalore chennai 500 hyd delhi 1000 delhi hyd 1000 bangalore hyd 800 Here chennai to bangalore and bangalore to chennai is same distance. and hyd and delhi also same criteria. Based on the distance i want to display only one row using sql query?
What is the purpose of a sql?
I need a exceptoin in pl/sql block so that if any errors occur in the block then no exception should errors should raise?