PostgreSQL – Page 3 – CodeRavo

Performing Updates with Joins in PostgreSQL

Updating Data Based on Joined Tables in PostgreSQL PostgreSQL is a powerful, open-source relational database system. … Performing Updates with Joins in PostgreSQLRead more

common-table-expression, cte, database, database-update, join(), PostgreSQL, SQL, sql-query, update, update-with-join

Insert or Update: Mastering UPSERT in PostgreSQL

In many applications, you need to insert new data into a table while updating existing records … Insert or Update: Mastering UPSERT in PostgreSQLRead more

common-table-expressions, ctes, Database Management, functions, insert, on-conflict, PostgreSQL, update, upsert

Auto-Incrementing Columns in PostgreSQL

In relational databases like PostgreSQL, auto-incrementing columns are used to automatically assign a unique identifier to … Auto-Incrementing Columns in PostgreSQLRead more

auto-incrementing, database-design, identity-columns, PostgreSQL, primary-key, sequences, serial

Efficient String Matching in PostgreSQL: Using LIKE, POSITION, and Pattern Operators

Introduction In relational databases such as PostgreSQL, querying data often involves searching for specific patterns within … Efficient String Matching in PostgreSQL: Using LIKE, POSITION, and Pattern OperatorsRead more

database querying, LIKE operator, operator, pattern matching, position-function, PostgreSQL, SQL, substring-search

Exiting the PostgreSQL Command-Line Interface (psql)

Introduction The PostgreSQL command-line interface, known as psql, is a powerful tool for interacting with PostgreSQL … Exiting the PostgreSQL Command-Line Interface (psql)Read more

ctrl-d, eof, exit, exit-keyword, PostgreSQL, psql, q, quit-signal, quit(), terminal-stop

Renaming a Column in SQL Databases: Methods Across Different RDBMS

Introduction When managing databases, you might encounter scenarios where it’s necessary to rename a column. Renaming … Renaming a Column in SQL Databases: Methods Across Different RDBMSRead more

alter table, database schema, MySQL, PostgreSQL, rdbms, rename-column, sp-rename, SQL, SQL Server

Updating Table Rows with Subqueries in PostgreSQL

PostgreSQL provides several ways to update table rows using subqueries. This tutorial will cover the different … Updating Table Rows with Subqueries in PostgreSQLRead more

common-table-expressions, ctes, direct-table-reference, joined-tables, PostgreSQL, subqueries, update-table-rows

Auto-Incrementing Primary Keys in PostgreSQL

PostgreSQL offers robust mechanisms for automatically generating unique identifiers, commonly used for primary keys. This tutorial … Auto-Incrementing Primary Keys in PostgreSQLRead more

auto-increment, database, identity, PostgreSQL, primary-key, sequence, serial, SQL

Resetting a Forgotten PostgreSQL Password

PostgreSQL is a powerful open-source relational database management system that requires authentication to access its features. … Resetting a Forgotten PostgreSQL PasswordRead more

authentication, Database Security, password-reset, pg-hba-conf, PostgreSQL

Inserting Strings with Single Quotes in PostgreSQL

Inserting Strings with Single Quotes in PostgreSQL PostgreSQL, like many SQL databases, uses single quotes to … Inserting Strings with Single Quotes in PostgreSQLRead more

dollar-quoting, escaping, PostgreSQL, prepared-statements, single-quotes, SQL, sql-injection, string-literals