A data definition language or data description language (DDL) is a syntax similar to a computer programming language for defining data structures, especially database schemas.
A database is an organized collection of data, stored and accessed electronically.
A relational database management system uses SQL MERGE (also called upsert) statements to INSERT new records or UPDATE existing records depending on whether condition matches.
Online analytical processing, or OLAP, is an approach to answering multi-dimensional analytical (MDA) queries swiftly in computing.
The Portable Document Format (PDF) is a file format developed in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.
Query languages or data query languages (DQLs) are computer languages used to make queries in databases and information systems.
The SQL SELECT statement returns a result set of records from one or more tables.
SQL (S-Q-L, "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS).
SQL/XML or XML-Related Specifications is part 14 of the Structured Query Language (SQL) specification.
SQL:1999 (also called SQL 3) was the fourth revision of the SQL database query language.
SQL:2006 or ISO/IEC 9075:2006 standard is the fifth revision of the ISO standard for the SQL database query language.
In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.