Invalid SQL is being generated by dotConnect for Oracle (EFCore)

Discussion of open issues, suggestions and bugs regarding Entity Framework support in ADO.NET Data providers
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jwobbe.oya
Posts: 2
Joined: Wed 30 Jan 2019 23:26

Invalid SQL is being generated by dotConnect for Oracle (EFCore)

Post by jwobbe.oya » Wed 30 Jan 2019 23:31

The following invalid SQL is being generated by dotConnect for Oracle

SELECT "$it".JJIS_NUMBER AS "Value0", "$it".YOUTH_ID AS "Value"
FROM OYA.YOUTH "$it"
ORDER BY DBMS_LOB.SUBSTR("$it"."Value0"), "Value"
FETCH FIRST :p__TypedProperty_0 ROWS ONLY

This leads to the following exception: Devart.Data.Oracle.OracleException (0x80004005): ORA-00904: "$it"."Value0": invalid identifier

To reproduce
1. Clone or download https://github.com/jwobbeoya/ReproDevartBug

2. Create the youth table with the Youth.sql script in the Ddl folder. The schema expected is OYA, but that can be changes if you update the schema in Consts.cs

3. Update appsetting.json with your connection string

4. Starting / Debugging the app with will cause invalid query to be generated

Shalex
Site Admin
Posts: 9543
Joined: Thu 14 Aug 2008 12:44

Re: Invalid SQL is being generated by dotConnect for Oracle (EFCore)

Post by Shalex » Fri 01 Feb 2019 18:56

Thank you for your report. We have reproduced the issue and will notify you when it is fixed.

Shalex
Site Admin
Posts: 9543
Joined: Thu 14 Aug 2008 12:44

Re: Invalid SQL is being generated by dotConnect for Oracle (EFCore)

Post by Shalex » Mon 18 Feb 2019 12:23

The bug with sorting by CLOB/NCLOB column in EF Core is fixed: viewtopic.php?f=1&t=38378.

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