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  2. PostgreSQL - Wikipedia

    en.wikipedia.org/wiki/PostgreSQL

    Tables can be set to inherit their characteristics from a parent table. Data in child tables will appear to exist in the parent tables, unless data is selected from the parent table using the ONLY keyword, i.e. SELECT * FROM ONLY parent_table;. Adding a column in the parent table will cause that column to appear in the child table.

  3. Comparison of relational database management systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_relational...

    Max DB size Max table size Max row size Max columns per row Max Blob/Clob size Max CHAR size Max NUMBER size Min DATE value Max DATE value Max column name size Informix Dynamic Server: ≈0.5 YB 12: ≈0,5YB 12: 32,765 bytes (exclusive of large objects) 32,765 4 TB 32,765 14: 10 125 13: 01/01/0001 10: 12/31/9999 128 bytes Ingres: Unlimited ...

  4. Year 2038 problem - Wikipedia

    en.wikipedia.org/wiki/Year_2038_problem

    The year 2038 problem (also known as Y2038, [1] Y2K38, Y2K38 superbug or the Epochalypse [2] [3]) is a time computing problem that leaves some computer systems unable to represent times after 03:14:07 UTC on 19 January 2038.

  5. Wikipedia:Age calculation templates - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Age_calculation...

    Wikipedia uses several templates that self-update every day to keep date and age information current. These are very useful for a dynamic online encyclopedia and save users from having to regularly update that kind of information. However, when using this kind of template, a few things should be kept in mind.

  6. Database - Wikipedia

    en.wikipedia.org/wiki/Database

    An SQL select statement and its result. In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and analyze the data.

  7. Cosmos DB - Wikipedia

    en.wikipedia.org/wiki/Cosmos_DB

    Most notably, Cosmos DB lacks support for date-time data requiring that you store this data using the available data types. For instance, it can be stored as an ISO-8601 string or epoch integer. MongoDB , the database to which Cosmos DB is most often compared, extended JSON in their BSON binary serialization specification to cover date-time ...

  8. Michael Stonebraker - Wikipedia

    en.wikipedia.org/wiki/Michael_Stonebraker

    Michael Ralph Stonebraker (born October 11, 1943 [6]) is an American computer scientist specializing in database systems.Through a series of academic prototypes and commercial startups, Stonebraker's research and products are central to many relational databases.

  9. Year-to-date - Wikipedia

    en.wikipedia.org/wiki/Year-to-date

    YTD measures are more sensitive to changes early in the year than later in the year. In contrast, measures like the 12-month ending (or year-ending) are less affected by seasonal influences. For example, to calculate year-to-date invoicing for a company, sum the invoice totals for each month of the current year up to the present date. [2]