PostgreSQL
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Software Development
Window functions in Database
Window functions in PostgreSQL allow us to perform calculations across a set of table rows that are related to the…
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Software Development
Database stored proc and triggers
When working with databases, stored procedures, and triggers are powerful tools that allow developers to automate and streamline data operations.…
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Core Java
Getting the Insert ID in JDBC
When working with relational databases in Java, it’s common to perform insert operations and then retrieve the ID of the…
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Core Java
Resolving PostgreSQL JSON Type Mismatch Errors in JPA
When working with PostgreSQL and Java Persistence API (JPA), you might encounter a common error related to JSON data types.…
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Enterprise Java
How to Fix PSQLException Operator Does Not Exist Character Varying = UUID
When working with Spring JPA and PostgreSQL, you might encounter an error like PSQLException: Operator Does Not Exist: character varying…
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Core Java
Store File or byte[] as SQL Blob in Java (Store and Load)
In many applications, you might need to store files or binary data directly in a database. PostgreSQL offers a data…
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Core Java
Insert JSON Object to PostgreSQL using preparedStatement
Storing JSON data in a PostgreSQL database can be quite efficient and effective. PostgreSQL offers two data types to store…
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Enterprise Java
Finding the Max Value in Spring Data JPA
When working with Spring Data JPA, retrieving specific values from a database is a common requirement. One such requirement is…
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Enterprise Java
Integrating Java Enums with JPA and PostgreSQL Enums
Enums are a powerful feature in Java, allowing us to define a fixed set of constants. When using JPA (Java…
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