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Simple query hangs.... Any idea..?
I have the following query
1. select count(*)
from T1 a , T2 b
where a.field1 = b.field2;
2. field1 is varchar2(20) and field2 is varchar2(20). There is index on field1 for the table T1 and field2 on T2.
3. The query specified in (1) hangs in Oracle.
4. The table T1 and T2 are new and I received the data from other system.
5. One SQL Server DBA he transferred these two tables from Oracle Database to SQL Sever. He runs the same query at SQL Server and get the error within 2 seconds as follows.
Arithmetic overflow error converting expression to data type int.
My question is
a. Why Oracle doesnot come out with any error message..?
b. Why it hangs..?
c. Is there any way to find on which record it is hanging, or which record is having problem in data at Oracle side..?
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