enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Schema migration - Wikipedia

    en.wikipedia.org/wiki/Schema_migration

    Execute a backfill in the database: copy data from the old format to the new format that existed previously, and hasn't been updated recently, so it's not dual written yet. After this point, the database has a complete replica of the data in both the old and new formats.

  3. Bulk insert - Wikipedia

    en.wikipedia.org/wiki/Bulk_insert

    A Bulk insert is a process or method provided by a database management system to load multiple rows of data into a database table. Bulk insert may refer to: Transact-SQL BULK INSERT statement; PL/SQL BULK COLLECT and FORALL statements; MySQL LOAD DATA INFILE statement; PostgreSQL COPY statement

  4. PostgreSQL - Wikipedia

    en.wikipedia.org/wiki/PostgreSQL

    PostgreSQL can link to other systems to retrieve data via foreign data wrappers (FDWs). [46] These can take the form of any data source, such as a file system, another relational database management system (RDBMS), or a web service. This means that regular database queries can use these data sources like regular tables, and even join multiple ...

  5. Shadow table - Wikipedia

    en.wikipedia.org/wiki/Shadow_table

    Shadow tables are objects in computer science used to improve the way machines, networks and programs handle information. [1] More specifically, a shadow table is an object that is read and written by a processor and contains data similar to (in the same format as) its primary table, which is the table it's "shadowing".

  6. Prepared statement - Wikipedia

    en.wikipedia.org/wiki/Prepared_statement

    Major DBMSs, including SQLite, [5] MySQL, [6] Oracle, [7] IBM Db2, [8] Microsoft SQL Server [9] and PostgreSQL [10] support prepared statements. Prepared statements are normally executed through a non-SQL binary protocol for efficiency and protection from SQL injection, but with some DBMSs such as MySQL prepared statements are also available using a SQL syntax for debugging purposes.

  7. Materialized view - Wikipedia

    en.wikipedia.org/wiki/Materialized_view

    Materialized views that store data based on remote tables were also known as snapshots [5] (deprecated Oracle terminology). In any database management system following the relational model, a view is a virtual table representing the result of a database query. Whenever a query or an update addresses an ordinary view's virtual table, the DBMS ...

  8. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    Copy the table to a wiki sandbox. In Calc select the table. Copy directly from it, and then paste into the visual editor, or if that does not work, into a blank visual editor table where the first header cell has been selected. It may take up to a minute. If there is a problem, then paste into Excel2Wiki first, and copy the wikitext.

  9. Insert (SQL) - Wikipedia

    en.wikipedia.org/wiki/Insert_(SQL)

    Using a database-specific SELECT statement on a temporary table containing last inserted row(s). Db2 implements this feature in the following way: Db2 implements this feature in the following way: SELECT * FROM NEW TABLE ( INSERT INTO phone_book VALUES ( 'Peter Doe' , '555-2323' ) ) AS t