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SQL Primary Key Example

Welcome readers, in this tutorial, we will understand the SQL Primary Key column that uniquely identifies a tuple in the database table. 1. Introduction SQL Primary Key is a column or multiple columns that uniquely identify a tuple in the database table. It contains unique values but cannot have null or duplicate It consists of multiple columns known as a ...

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SQL Data Types Tutorial

1. Introduction SQL is the language used to communicate with Relational Databases such as MySQL, Oracle, MS SQL Server, PostgreSQL, etc. In this post, we will examine the various SQL Data Types and provide examples for MySQL, which is the most widely used open-source database. This post requires some knowledge in SQL and a tutorial for a complete understanding of ...

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MySQL Python Example

1. MySQL Python – Introduction In this post, we feature a comprehensive Tutorial on integrating MySQL in a simple Python application based on Flask and execute basic CRUD operations with the same. MySQL is one of the most used SQL databases in many of the world-enterprise applications due to its ability to manage transactions and the ACID-behaviour which is built into its ...

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MySQL NodeJS Example

1. Introduction In this post, we feature a comprehensive Tutorial on integrating MySQL in a simple NodeJS application and execute basic CRUD operations with the same. MySQL is one of the most used SQL databases in many of the world-enterprise applications due to its ability to manage transactions and the ACID-behaviour which is built into its core. One of the reasons MySQL ...

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MySQL Full-text Search Tutorial

1. Introduction MySQL is one of the most used SQL databases in many of the world-enterprise applications due to its ability to manage transactions and the ACID-behaviour which is built into its core. One of the reasons MySQL is so popular is due to the easiness it provides for its usage and its related commands. In the open source web application ...

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JDBC HSQLDB Tutorial

In this tutorial we will review HSQLDB basics. Then we will write a simple Java application to demonstrate how to access and interact with an HSQLDB database using JDBC. 1. JDBC HSQLDB – Introduction HSQLDB stands for Hyper Structured Query Language Database. It’s a relational database management system written in Java. It supports JDBC interface for database access. It offers ...

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Java JDBC PostgreSQL Connection Example

This article is a Java JDBC PostgreSQL Connection Example. PostgreSQL is an object-relational database management system. It’s one of the most popular databases used in the world. This article will show you how Java connects to it using JDBC. 1. Tools and Requirements PostgreSQL download Eclipse Oxygen PostgreSQL JDBC driver download 2. Development Environment Setup This example is set up ...

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Spring Boot JDBC Example

Do you want to learn about using Spring Boot with JDBC? Yes? Then you have come to the right place. This example is very straight forward and simple, even a 12 year old can understand. Let’s begin with our Spring Boot JDBC example. 1. Tools Apache Maven Mars Eclipse Spring Boot H2 Database Engine 2. Assumptions This article assumes that ...

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Hibernate SQL Parameter Values using Log4j Example

When using Hibernate, if developers log the Hibernate SQL statements, they will see something like this: Hibernate: insert into student (id, first_name, last_name, email) values (?, ?, ?, ?) However, for debugging the application, developers want to see the actual parameter values in the Hibernate logs i.e. basically, they want to get rid of the question marks in the logs. ...

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