“lock in oracle”?
admin
Depending on the context, it could mean several things: What is a Lock in Oracle? A lock in Oracle is a mechanism used to control concurrent access to database data.…
July 10, 2026
cluster
In Oracle Database, a cluster is a schema object that stores rows from one or more tables that have a common column in the same data blocks. This improves the…
Indexing
In Oracle, you create an index using the CREATE INDEX statement. Syntax Example 1: Create a Simple Index Suppose you have an employees table: This creates an index on the…
synonym
In Oracle, a synonym is an alias (alternate name) for a database object such as a table, view, sequence, procedure, function, package, or materialized view. Synonyms simplify object access and…
sequence
In Oracle, a sequence is a database object that generates unique numeric values, often used to create primary key values automatically. Syntax to create a sequence Example Create a sequence:…
View
In Oracle, a View is a virtual table created from the result of a SQL query. It does not store data itself; instead, it stores the SQL statement. Whenever you…