SQL – CodeRavo

Understanding and Handling PostgreSQL Transaction Aborts

When working with PostgreSQL databases, you might encounter an error message stating "current transaction is aborted, … Understanding and Handling PostgreSQL Transaction AbortsRead more

abort, database, error handling, Java, PostgreSQL, SQL, transaction

Performing Like Queries with Eloquent in Laravel

Performing Like Queries with Eloquent in Laravel Laravel’s Eloquent ORM provides a clean and expressive way … Performing Like Queries with Eloquent in LaravelRead more

database, eloquent, laravel, like-query, MySQL, orm, parameter-binding, PostgreSQL, search, SQL, wildcards

Inspecting Table Structure in SQL Databases

Understanding Table Structure in SQL When working with relational databases, understanding the structure of a table … Inspecting Table Structure in SQL DatabasesRead more

column-definitions, data types, database, describe-table, information-schema, metadata, schema, SQL, table-structure

Retrieving Rows with Maximum Date per Group in SQL

In many scenarios, you may need to retrieve rows from a database table where each row … Retrieving Rows with Maximum Date per Group in SQLRead more

database, filtering, grouping, join(), performance optimization, query, rank, row-number, SQL, subquery, window function

Understanding Multi-Part Identifiers in SQL Queries

In SQL, a multi-part identifier refers to a notation used to specify the location of a … Understanding Multi-Part Identifiers in SQL QueriesRead more

aliases, binding-error, database schema, multi-part-identifier, naming-conventions, reserved-words, special-characters, SQL, syntax

Inserting DateTime Values into SQL Databases with C#

Introduction Working with databases often requires handling date and time values. Inserting DateTime values into a … Inserting DateTime Values into SQL Databases with C#Read more

.NET, c#, data types, DateTime, parameterized-queries, SQL, SQL Server, sql-injection

Emulating the SQL IN Clause with LINQ

Emulating the SQL IN Clause with LINQ LINQ (Language Integrated Query) provides a powerful and expressive … Emulating the SQL IN Clause with LINQRead more

c#, Contains, data filtering, extension-method, filtering, in-clause, LINQ, query, SQL

Using GROUP BY and Aggregate Functions in SQL Queries

In SQL, the GROUP BY clause is used to group rows that have the same values … Using GROUP BY and Aggregate Functions in SQL QueriesRead more

Aggregate Functions, avg, group by, max, min, non-aggregated-columns, SQL, sum

Dropping Multiple Columns in SQL Tables

Dropping Multiple Columns in SQL Tables SQL tables often evolve over time, requiring modifications to their … Dropping Multiple Columns in SQL TablesRead more

alter table, data-management, database, database-design, drop-column, MySQL, oracle, PostgreSQL, schema-modification, SQL, SQL Server

Locating PostgreSQL Database Files

PostgreSQL, a powerful open-source relational database management system (RDBMS), stores databases as a collection of files … Locating PostgreSQL Database FilesRead more

configuration, data-directory, database-files, database-location, file-storage, oid, pgadmin, PostgreSQL, SQL, tablespace