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  2. Database design - Wikipedia

    en.wikipedia.org/wiki/Database_design

    Refine the design – Analyze the design for errors. Create tables and add a few records of sample data. Check if results come from the tables as expected. Make adjustments to the design, as needed. Apply the normalization rules – Apply the data normalization rules to see if tables are structured correctly. Make adjustments to the tables, as ...

  3. TPL Tables - Wikipedia

    en.wikipedia.org/wiki/TPL_Tables

    BLS ceased major software development of the software in the early to mid-1980s. At that time, two developers of the mainframe product founded QQQ Software, Inc. and began development of TPL Tables, rewriting the system for PCs and Unix systems. The first version of TPL Tables was released in 1987. The current version is 7.0.

  4. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    Data cells should normally have plain unbolded text, and a lighter background. In the table below the data cell wikitext is on the same line as the row header wikitext. This causes the data cell backgrounds to be the same shade of gray as the column and row headers. It also makes the data cell text bold. See how to fix this after the table.

  5. Unum (number format) - Wikipedia

    en.wikipedia.org/wiki/Unum_(number_format)

    This set of points is chosen arbitrarily, and arithmetic operations involving them are not performed logically but rather by using a lookup table. The size of such a table becomes prohibitive for an encoding format spanning multiple bytes. This challenge necessitated the development of the Type III unum, known as the posit, discussed below.

  6. Shard (database architecture) - Wikipedia

    en.wikipedia.org/wiki/Shard_(database_architecture)

    Horizontal partitioning splits one or more tables by row, usually within a single instance of a schema and a database server. It may offer an advantage by reducing index size (and thus search effort) provided that there is some obvious, robust, implicit way to identify in which partition a particular row will be found, without first needing to search the index, e.g., the classic example of the ...

  7. Apache Iceberg - Wikipedia

    en.wikipedia.org/wiki/Apache_Iceberg

    Apache Iceberg is a high performance open-source format for large analytic tables. Iceberg enables the use of SQL tables for big data while making it possible for engines like Spark, Trino, Flink, Presto, Hive, Impala, StarRocks, Doris, and Pig to safely work with the same tables, at the same time. [1] Iceberg is released under the Apache ...

  8. Denormalization - Wikipedia

    en.wikipedia.org/wiki/Denormalization

    In computing, denormalization is the process of trying to improve the read performance of a database, at the expense of losing some write performance, by adding redundant copies of data or by grouping data. [1] [2] It is often motivated by performance or scalability in relational database software needing to carry out very large numbers of read ...

  9. Table (information) - Wikipedia

    en.wikipedia.org/wiki/Table_(information)

    A table is an arrangement of information or data, typically in rows and columns, or possibly in a more complex structure. Tables are widely used in communication, research, and data analysis. Tables appear in print media, handwritten notes, computer software, architectural ornamentation, traffic signs, and many other places.

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