schemanameobjectname

schemanameobjectname is a generic term used to describe a fully qualified identifier for a database object, formed by combining a schema name and an object name separated by a dot (schemaname.objectname). The schema acts as a namespace that groups related objects such as tables, views, procedures, functions, sequences, and synonyms. Using the schema prefix helps avoid naming conflicts when objects with the same name exist in different schemas and clarifies ownership and organization.

In practice, schemanameobjectname is used in data definition and data manipulation statements to reference a specific object. Examples include selecting from a table, altering a view, granting permissions, or calling a function. The exact syntax is largely consistent across many relational databases, but details vary. For example, a query may reference a table as schemaname.objectname in PostgreSQL and SQL Server, or schema.object in Oracle. In MySQL-like environments, the equivalent concept is often expressed as database.table.

Quoting and case sensitivity play a role when object or schema names include uppercase letters or special characters. Some systems require quoting (for example, using double quotes in PostgreSQL, brackets in SQL Server, or backticks in MySQL) to preserve the exact name. Without quotes, most systems fold names to lower or upper case, which can affect object resolution.

If the schema is omitted, the system typically uses a default schema for the current session or user, which makes the object accessible as objectname in many contexts. However, referencing the fully qualified form is useful for disambiguation, cross-schema operations, and permission management. The concept of schemanameobjectname thus encapsulates the standard practice of organizing and addressing database objects within a named namespace.