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Learn how to write safe, reusable SQL with named placeholders like :emp_id in DataGrip, set values via the Parameters dialog, and verify that a PreparedStatement is used.
Goal: Prevent the NetBeans IDE UI from blocking indefinitely when a JDBC connection pool is exhausted during concurrent database operations. Constraint: The connection pool editor in the Services window exposes initial size, maximum size, and statement cache, but does not provide a configurable wait‑timeout or acquisition timeout for obtaining a connection w
Goal Ensure that a transaction can be rolled back to a known point after executing a schema‑altering statement (e.g., ALTER TABLE) so that any unintended data changes are undone while preserving the ability to commit other work. Constraints / Uncertainty Many relational databases issue an implicit commit when a DDL statement is executed, which may terminate
Database Connection Pool Management Quarkus uses the Agroal connection pool to handle JDBC connections. To prevent database-side resource exhaustion, the quarkus.datasource.jdbc.max-size property establishes the upper bound of available connections, while quarkus.datasource.jdbc.acquisition-timeout manages how long a thread waits for a connection during peri
Goal Upgrade a small Java application’s ClickHouse schema without service interruption. The application uses the official JDBC driver and a ReplicatedMergeTree table that must stay writable during the change. Constraints ALTER TABLE ADD COLUMN with a default value temporarily locks writes on the shard. Drop‑and‑swap requires a brief window where the old tabl
I have a problem with displaying my databse structure through Intellij's Data Sources and Drivers page. I can connect to my database which is hosted on a redhat server through using application.properties of my spring project: spring.datasource.url=jdbc:postgresql://192.168.0.38:5432/cms_database which works fine. Although, whenever I try to use Intellij's D
When executing queries against tables with millions of rows in PhpStorm, the IDE manages memory by implementing a client-side boundary on the retrieved data. This is primarily controlled through the Page Size configuration within the Data Source properties. While this mechanism prevents the IDE from attempting to load the entire dataset into memory at once,
Managing dependency changes in Clojure projects requires a strategy that lets developers test a newer library version while preserving the ability to revert quickly if the upgrade introduces regressions or breaks existing functionality. The process must work with both deps.edn and Leiningen’s project.clj, and should integrate with the project’s test suite an
When implementing pagination for large datasets in Hibernate ORM, the combination of setFirstResult() and setMaxResults() is used to manage result windows. However, as the offset increases, the underlying database may experience significant latency due to the scanning of skipped rows. There is a need to ensure that long-running pagination queries are handled
datagrip
netbeans
java
quarkus
clickhouse
postgresql
phpstorm
clojure
hibernate
scalingo