Adelwageeh96 opened a new pull request, #10218:
URL: https://github.com/apache/nifi/pull/10218
Implement supportsUpsert() and getUpsertStatement() in
MSSQLDatabaseDialectService to produce a MERGE statement for UPSERT operations
on SQL Server.
- Added new controller service: MSSQLDatabaseDialectService Provides SELECT
with paging, UPSERT using MERGE, and basic ALTER/CREATE DDL generation for SQL
Server 2012+.
- Added new controller service: MSSQL2008DatabaseDialectService Extends
MSSQLDatabaseDialectService to support SQL Server 2008, including SELECT with
ROW_NUMBER() paging.
- Registered both services in
META-INF/services/org.apache.nifi.controller.ControllerService Enables NiFi to
discover and use the new MSSQL dialect services.
- Added unit tests:
- TestMSSQLDatabaseDialectService.java: Verifies SQL generation and UPSERT
logic for MSSQLDatabaseDialectService.
- TestMSSQL2008DatabaseDialectService.java: Verifies paging and SELECT
logic for MSSQL2008DatabaseDialectService.
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# Summary
[NIFI-14869](https://issues.apache.org/jira/browse/NIFI-14869)
# Tracking
### Issue Tracking
- [x] [Apache NiFi Jira](https://issues.apache.org/jira/browse/NIFI-14869)
issue created
### Pull Request Tracking
- [x] Pull Request title starts with Apache NiFi Jira issue number:
`NIFI-14869`
- [x] Pull Request commit message starts with Apache NiFi Jira issue number:
`NIFI-14869`
### Pull Request Formatting
- [x] Pull Request based on current revision of the `main` branch
- [x] Pull Request refers to a feature branch with one commit containing
changes
# Verification
### Build
- [x] Build completed using `./mvnw clean install -P contrib-check`
- [x] JDK 21
### Licensing
- [x] No new dependencies introduced
### Documentation
- [x] Documentation formatting appears as expected in rendered files
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