What is the sql query to concatenate column values from multiple rows in oracle?
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What is the difference between truncate & delete command?
WHEN CURSOR MOVES FROM ONE FORM TO ANOTHER FORM, HOW MANY TRIGGER WILL BE FIRED AND WHAT ARE THEIR SEQUENCE?
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ---------- 1 NULL 7 2 4 NULL NULL 5 NULL 3 NULL NULL
24. Display the order number for all orders whose average item cost is greater than the overall average item cost across all orders.
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