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Starting PostgreSQL Server on Mac OS X

PostgreSQL is a powerful open-source relational database management system that can be installed on various operating … Starting PostgreSQL Server on Mac OS XRead more

configuration, database, installation, mac-os-x, PostgreSQL, server, troubleshooting

Retrieving Table Schemas: Listing Database Columns

Understanding Database Schemas Databases organize data into tables, and each table is defined by a schema. … Retrieving Table Schemas: Listing Database ColumnsRead more

column-list, database, information-schema, metadata, MySQL, oracle, PostgreSQL, SQL, SQL Server, table-schema

Resetting the MySQL Root Password

Resetting the MySQL Root Password MySQL is a widely used open-source relational database management system. A … Resetting the MySQL Root PasswordRead more

authentication, Command Line, database, database administration, MySQL, mysqld-safe, reset-password, root password, Security, SQL

Connecting to Your SQL Server Instance with SQL Server Management Studio

SQL Server Management Studio (SSMS) is a powerful tool for managing SQL Server databases. A common … Connecting to Your SQL Server Instance with SQL Server Management StudioRead more

connection, database, instance, server-name, SQL Server, sql-server-configuration-manager, sql-server-management-studio, sqlcmd, ssms

String Manipulation with SQL: Replacing Substrings

String Manipulation with SQL: Replacing Substrings SQL provides powerful tools for manipulating strings within your database. … String Manipulation with SQL: Replacing SubstringsRead more

data types, database, ntext, nvarchar, performance, replace, SQL, SQL Server, string manipulation, substring, text, update, varchar

Retrieving the Latest Record for Each User in SQL

Introduction When working with time-series data in SQL, a common requirement is to retrieve the most … Retrieving the Latest Record for Each User in SQLRead more

database, date, latest-record, Left Outer Join, not-exists, performance, row-number, SQL, subquery, user, window function

Executing SQL Scripts with psql

PostgreSQL’s psql command-line tool is a powerful way to interact with your databases. A common task … Executing SQL Scripts with psqlRead more

Automation, Command Line, database, execute, insert, pg-hba-conf, pgpass, PostgreSQL, psql, quiet-mode, sql-script

Removing Duplicate Rows in SQL

Removing Duplicate Rows in SQL Duplicate data can creep into any database over time, impacting data … Removing Duplicate Rows in SQLRead more

data integrity, database, delete, duplicate-rows, group by, performance, query, remove duplicates, row-number, SQL, transactions, window function

Generating Unique Identifiers in Oracle Databases

Oracle databases, prior to version 12c, didn’t offer a direct equivalent to the AUTO_INCREMENT feature found … Generating Unique Identifiers in Oracle DatabasesRead more

auto-increment, database, database-design, identity, oracle, primary-key, sequence, SQL, trigger, unique-identifier

Installing psycopg2: Resolving the pg_config Issue

Introduction psycopg2 is a popular PostgreSQL adapter for Python, allowing your Python applications to interact with … Installing psycopg2: Resolving the pg_config IssueRead more

database, error, installation, libpq-dev, pg-config, pip, PostgreSQL, psycopg2, Python, setup

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