Graph/09956e29-609f-4739-831d-8d0f4dff4a84

Domainunvalidated

JDBC

09956e29-609f-4739-831d-8d0f4dff4a84

JDBC

Node Details

Public graph metadata

Updated4/30/2026

PageRank0.0001

Effectiveness0.000

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44 linked nodes

PERTAIN_TOSolution

If your job is simple and can be solved using vanilla python, you should choose that. — AWS Glue ETL job to update data stored in S3 Objects to an existing table in DDB. Tension: There is no official numbers provided by AWS. Outcome: Also consider using packages i.e. Pandas, PyArrow etc. for performance improvement.

PERTAIN_TOProblem

I have a table named `payments`. This table consists of millions of records — at the end of every day I need to read the data. Tension: check for any payments that are past due date, if any payments are past due date, I need to mark the payment as "Overdue". Outcome: How can I achieve this in an optimized way using the AWS glue spark job?

PERTAIN_TOSolution

More complex, multi-statement queries, or things like `insert..on conflict` and `merge`.

PERTAIN_TOProblem

you get the type mismatch error — merge with PostgreSQL 17.2. Tension: there's no immediate context that could be used to guess its intended type. Outcome: it defaults to `text`.

PERTAIN_TOSolution

Latest version support it. — adding to connection string. Outcome: jdbc:h2:mem:my_db;MODE=PostgreSQL.

PERTAIN_TOProblem

Hibernate send multiple statement in the same time and not merging them into multi-valued INSERT — When you set batch_size > 1. Tension: I was unable to find any official documentation on such INSERT statement merging. Outcome: it looks like this feature does exist and I just haven't quite managed to get it to work.

PERTAIN_TOSolution

without using reWriteBatchedInserts inserts will not be merged — set batch_size > 1. Tension: Hibernate send multiple statement in the same time and not merging them into multi-valued INSERT. Outcome: without using reWriteBatchedInserts inserts will not be merged.

PERTAIN_TOSolution

Spring context. Tension: The datasource configuration should be injected into the Spring context. Outcome: registry.add("spring.datasource.url", postgreSQLContainer ::getJdbcUrl); registry.add("spring.datasource.username", postgreSQLContainer ::getUsername); registry.add("spring.datasource.password", postgreSQLContainer ::getPassword);.

PERTAIN_TOProblem

java.lang.IllegalArgumentException: Can't change resolved type for param: 84 from 2278 to 1700 — if we reach the prepareThreshold. Tension: When the statement is no server side prepared (prepareThreshold is not reached) the SP call works perfectly. Outcome: workaround, it’s based on using CallableStatement#setNull in every out parameter to correct metadata.

PERTAIN_TOSolution

using CallableStatement#setNull in every out parameter to correct metadata — server side prepared statements. Outcome: cStm.setNull(84, java.sql.Types.NUMERIC);.

PERTAIN_TOSolution

use the standard combo to read files — if you use the utils provided by JZOS. Outcome: you will have access to several nuances to work with z/OS datasets like reading from VSAM files, flat datasets, PDS directories and others.

PERTAIN_TOProblem

Does the JVM exploit the zOS DFSMS subsystem directly? — on zOS 16 on 3931 mainframe with Java. Tension: specifying BUFNO=50 for large files read by other languages improves run time. Outcome: we do not know how well the JVM interacts with the zOS host.

PERTAIN_TOProblem

the samples for JDBC are not working — The GridDB server has been configured to use FIXED_LIST instead of MULTICAST. Tension: While the c_client and Java samples within GridDB operate as intended, the samples for JDBC are not working. Outcome: made it work.

PERTAIN_TOSolution

The Documentation recommends using a notification member — jdbc:gs:///(clusterName)/(databaseName)?notificationMember=(notificationMember). Tension: port change from `String jdbcport = "10001";` that previously was used for TQL to `String jdbcport = "20001";` SQL made it work. Outcome: made it work.

Spring JPA fails when executing an UPDATE on the Oracle table, throwing “Unable to bind parameter #7 - Invalid column index”.

PERTAIN_TOSolution

Fix the entity-to-table mapping so the column names exactly match the database schema (e.g., rename the column or properly escape/quote it and adjust the `@Column(name=...)` mapping) so JPA generates an UPDATE with the correct parameter bindings.

PERTAIN_TOAnswer

so-79755828

PERTAIN_TOProblem

Processing Kafka/REST/gRPC messages while persisting to a DB is constrained by a very small JDBC connection limit, causing occasional queries to hold connections for seconds and risking overload during load spikes.

PERTAIN_TOSolution

now it's time to scale - we're going to handle millions of messages — from thousands of messages to millions of messages. Tension: should process messages as quickly as possible, ideally with the same CPU/memory utilization. Outcome: That whole idea is absurd.

PERTAIN_TOAnswer

so-79748358

PERTAIN_TOProblem

Exception in thread "main" java.lang.IllegalStateException: java.lang.NoSuchMethodError: 'void org.springframework.data.jpa.repository.config.JpaRepositoryConfigExtension.registerLazyIfNotAlreadyRegistered. Tension: I am trying to do a sample microservice which involves pulling data from multiple databases.

PERTAIN_TOSolution

If you see 2 versions of JPA — Spring Boot 3.3.x pulling in Spring Data JPA 3.3.x but another library in your project bringing an older Spring Data JPA. Tension: then remove the older version. Outcome: remove the older version.

PERTAIN_TOAnswer

so-79735342

PERTAIN_TOProblem

The dialect works perfectly fine in a local mode. — trying to get it registered in my Spark (v3.5.1) cluster. Tension: The Spark cluster also successfully retrieves data from DB whenever I execute queries that don't require dialect customizations. Outcome: It turned out, there were only 2 things that really mattered.

PERTAIN_TOSolution

The application JAR with the custom dialect had to be accessible for Spark workers. — Spark workers. Tension: The dialect registration had to occur on every worker.

PERTAIN_TOAnswer

so-79553452

PERTAIN_TOProblem

The server requested SCRAM-based authentication, but no password was provided. — when i try to run my Main Method. Outcome: changed the port used by CrateDB to 5433 because PostgreSQL is installed and is using Port 5432.

PERTAIN_TOSolution

changed the port used by CrateDB to 5433 — because PostgreSQL is installed and is using Port 5432. Outcome: changed the port used by CrateDB to 5433.

PERTAIN_TOAnswer

so-79547530

PERTAIN_TORootCause

jOOQ's auto-discovering field types from JDBC `DatabaseMetaData` — If you're just executing a native SQL query. Tension: you can avoid jOOQ's auto-discovering field types from JDBC `DatabaseMetaData`.

PERTAIN_TOProblem

my SQLite Integers into a Java int which only holds 32 bits. Tension: I'd like it to put those values into a long instead.

PERTAIN_TOSolution

you can pass any data type to it, explicitly — If you're creating fields from identifiers manually. Tension: avoid jOOQ's auto-discovering field types from JDBC `DatabaseMetaData`. Outcome: you can avoid jOOQ's auto-discovering field types from JDBC `DatabaseMetaData` by using `ResultQuery.coerce()`.

PERTAIN_TOAnswer

so-79501372

PERTAIN_TOProblem

ORA-00904: "YSTIMESTAMPHEREYS_USER_CODE": Invalid identified? — in_timestamp = systimestamp WHERE sys_user_code = ? Parameters: [myuser]. Outcome: something in your client API (not Oracle) is dropping the first letter of each word after that initial `=` and then collapsing the spaces that remain.

PERTAIN_TOSolution

After debugging the QueryRunner code — PreparedStatement.getParameterMetaData. Tension: something in your client API (not Oracle) is dropping the first letter of each word. Outcome: have found out that the error happens here (↓) in `PreparedStatement.getParameterMetaData`.

PERTAIN_TOAnswer

so-79480066

PERTAIN_TOProblem

Unable to get java.sql.Driver from DriverManager — When I try to initiate the database. Tension: I have written a Scala+AKKA api using Scala 3. Outcome: This fixed the above issue, so I'm marking this as resolved.

PERTAIN_TOSolution

This then allowed me to set my config like this: — The starter guide has references to `URL`, `USER` variables when setting the config. Tension: `URL`, `USER` and `PASS` are deprecated. Outcome: `import org.hibernate.cfg.JdbcSettings._`.

PERTAIN_TOAnswer

so-79278011

PERTAIN_TOProblem

ERROR: cannot alter type of a column used by a view or rule — After migration from SpringBoot 2.7.18 to SpringBoot 3.4.0 and Hibernate 6. Outcome: I've drop the view which was blocking doing alter on colums. After that Hibernate updated database structure.

PERTAIN_TOSolution

I've drop the view which was blocking doing alter on colums — Since that application starts with parameter "spring.jpa.hibernate.ddl-auto" set to "update" without erros. Tension: According to @M.Deinum advice I'll set this parameter to 'validate' and use Flyway to database structure updates. Outcome: After that Hibernate updated database structure and I recreate the view.

PERTAIN_TOAnswer

so-79257275

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