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QUESTION
I'm trying to SELECT a LONG RAW column in an Oracle table using the OCI library.
For reasons that go beyond the scope of this question, I prefer to fetch the data by pieces, not using a callback therefore.
The execution of the statement returns, as expected, OCI_NEED_DATA but the first call to OCIStmtFetch causes a system error.
ErrorCode 5: Access violation reading address 0 in oracommon12.dll.
I got client 12.1 and connect to Oracle 10.g
Below a minimal program that reproduces the error.
Everything goes well until line 43 (result 10): It prints 99 which equals 'OCI_NEED_DATA'.
The program crashes the line after.
ANSWER
Answered 2020-Sep-18 at 10:16I figured it out myself:
First of all, the parameter iters within the call to OCIStmtExecute
must be set to 0
.
This avoids the crash but doesn't resolve the whole problem.
Furthermore, the parameter value_sz within the call to OCIDefineByPos
must be set to the actual size of the column being read.
Finally, the buffer that is passed as the 4th parameter of OCIStmtSetPieceInfo
can be read only after the successive call to OCIStmtFetch
.
This results in the following code:
QUESTION
I am writing a client in C which sends a query to Oracle DB, and when I try to sample the number of rows affected by it, I always get value of 1. This is the query:
...ANSWER
Answered 2020-Jul-15 at 11:08It is unfortunately how things work. Your block could be deleting 20 rows, then updating 10, etc. SQL%ROWCOUNT always returns 1 after successful execution of a PL/SQL block run via execute immediate. You might consider calling SQL%ROWCOUNT inside the dynamic block and then return that value and use it.
You can see this behavior in my trivial LiveSQL script: https://livesql.oracle.com/apex/livesql/s/kdh6dang21mt8eumn4x6wv0ct
QUESTION
In our application we are getting the request object from third party as form data. We are processing the form data in Spring controller and send the response back. In spring controller we have wrote the logic like below.
...ANSWER
Answered 2019-Oct-25 at 17:21Use a map:
QUESTION
Im trying to persist an doctrine entity with a boolean field where the values are 0 or 1.
When the property is set to true, it save it as '1' in database. But when its 'false' or '0', it save it as NULL on database.
How can I fix this to only save only as 1 or 0 ?
The annotation for the property I use is like following:
...ANSWER
Answered 2017-Apr-05 at 14:44Just set the SQL Default to 0 (Edit: You need to update the schema after that change):
QUESTION
I have faced a question concerning OCA exam, the question is:
...ANSWER
Answered 2017-Nov-09 at 13:49Depending on @BarbarosÖzhan research, and the book "OCA: Oracle Database 12c Administrator Certified Associate Study Guide ... By Biju Thomas" page "1101" the answer number "14", which sounds:
ALTER TABLE … SHRINK SPACE does not create any new extents and is not resumable.
That indicates, that the answer of OCA exam question is wrong.
QUESTION
In DataStage 9.1.2 I am getting this message error when I try to extract some data within a Oracle Connector
...ANSWER
Answered 2017-Jun-07 at 14:20I had to ask for parallel read permissions to the DBA and then I could run my job in parallel mode (including access to database)
QUESTION
I have application with this security setting:
...ANSWER
Answered 2017-Jan-05 at 13:37OK I found the problem. This thread helps me a lot
I am autowiring authenticationManager:
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