database – Page 10 – CodeRavo

Working with Identifiers and Schemas in PostgreSQL

PostgreSQL is a powerful, open-source relational database system. A common issue beginners (and sometimes experienced developers) … Working with Identifiers and Schemas in PostgreSQLRead more

case sensitivity, database, identifiers, naming-conventions, PostgreSQL, query, schema, search-path, SQL, table-name

Moving Tables Between Databases in SQL Server

Moving Tables Between Databases in SQL Server When working with SQL Server, you may encounter situations … Moving Tables Between Databases in SQL ServerRead more

copy-table, Create Table, data migration, database, INSERT INTO, move-table, schema-migration, Scripting, select-into, SQL Server, table

Troubleshooting Oracle Authentication Errors

Understanding Oracle Authentication and Common Errors Oracle databases rely on robust authentication mechanisms to control access … Troubleshooting Oracle Authentication ErrorsRead more

authentication, case sensitivity, database, dba-users, ora-01017, oracle, password, password-versions, sqlnet, sqlnet-ora, troubleshooting

Conditional Insertion in MySQL

Conditional Insertion in MySQL Inserting data into a database is a fundamental operation. However, you often … Conditional Insertion in MySQLRead more

conditional-insert, data integrity, database, insert, insert-ignore, MySQL, not-exists, on-duplicate-key, unique-index

Casting Strings to Numbers in MySQL

In MySQL, when working with data that is stored as strings but needs to be used … Casting Strings to Numbers in MySQLRead more

casting, database, int, MySQL, SQL, varchar

String Matching in MongoDB Documents

Finding Documents Containing Specific Strings MongoDB provides powerful querying capabilities, and a common task is to … String Matching in MongoDB DocumentsRead more

database, find, mongodb, query, regex, regular-expression, search, string matching, text, text-index

Importing MySQL Databases from the Command Line

Importing MySQL Databases from the Command Line MySQL databases are often exported as .sql files, containing … Importing MySQL Databases from the Command LineRead more

Command Line, database, database-import, Import, MySQL, MySQL Client, source, SQL, terminal

Finding the Nth Highest Salary

Finding the Nth Highest Salary In many database applications, you might need to retrieve the Nth … Finding the Nth Highest SalaryRead more

database, dense-rank, limit, nth-highest-salary, query optimization, row-number, SQL, subquery, top, window function

Working with Output Parameters in SQL Stored Procedures

Understanding Output Parameters SQL stored procedures are precompiled sets of SQL statements that can be executed … Working with Output Parameters in SQL Stored ProceduresRead more

data-retrieval, database, output-parameters, procedure-call, programming, SQL, SQL Server, stored procedures, variable assignment

Conditional Logic with the SQL CASE Statement

Conditional Logic with the SQL CASE Statement The CASE statement is a powerful tool in SQL … Conditional Logic with the SQL CASE StatementRead more

CASE statement, conditional expressions, conditional logic, data manipulation, database, SQL, sql-query, sql-tutorial