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Query by Example (QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL. [1] It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions.
To use a colour in a template or table you can use the hex triplet (e.g. bronze is #CD7F32) or HTML color names (e.g. red). Editors are encouraged to make use of Brewer palettes for charts, maps, and other entities, using this tool.
For example, nested tables (tables inside tables) should be separated into distinct tables when possible. Here is a more advanced example, showing some more options available for making up tables. Users can play with these settings in their own table to see what effect they have.
See the example tables above and below. See also meta:Help:Sorting#Sort modes and the section about forcing the sort mode of a column. To work data-sort-type=number needs to be in the header cell that contains the sorting icon. In tables with multi-row headers, the sorting icon will be in the lowest header cells.
In relational databases, the information schema (information_schema) is an ANSI-standard set of read-only views that provide information about all of the tables, views, columns, and procedures in a database. [1]
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
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One of several templates for styling individual table cells with standard contents and colors. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status text 1 text to be displayed instead of the default; if this doesn't work put the text after the template, possibly with a vertical bar | in between Default (template ...