Oracle International Corporation

Qingchun Jiang

Tirthankar Lahiri

Anindya Chandra Patthak

Chi-Kim Hoang

Dina Thomas

Kirk Meredith Edson

Martin Reames

Kao Makino

Subhradyuti Sarkar

Neelam Goyal

Martin A Reames

Columns of a table are stored in either row-major format or column-major format in an in-memory DBMS. For a given table, one set of columns is stored in column-major format; another set of columns for a table are stored in row-major format. This way of storing columns of a table is referred to herein as dual-major format. In addition, a row in a dual-major table is updated 'in-place', that is, updates are made directly to column-major columns without creating an interim row-major form of the column-major columns of the row. Users may submit database definition language (“DDL”) commands that declare the row-major columns and column-major columns of a table.

Combined row and columnar storage for in-memory databases for OLTP and analytics workloads

Columns of a table are stored in either row-major format or column-major format in an in-memory DBMS. For a given table, one set of columns is stored in column-major format; another set of columns for a table are stored in row-major format. This way of storing columns of a table is referred to herein as dual-major format. In addition, a row in a dual-major table is updated 'in-place', that is, updates are made directly to column-major columns without creating an interim row-major form of the column-major columns of the row. Users may submit database definition language ('DDL') commands that declare the row-major columns and column-major columns of a table.

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Qingchun Jiang