Definition of SQL databases Sample Clauses

Definition of SQL databases. Question: What is an SQL database? 6 SQL (Structured Query Language) is a programming language for relational databases standardized by ISO as an international norm. It is used to:  define the structure of databases (SQL‐DDL: Data Definition Language).  query data in the database with complex search criteria linked together in Boolean conditions (SQL‐DQL: Data Query Language).  modify the data: insert new values, update old ones, delete deprecated records, etc. (SQL‐ DML: Data Manipulation Language).  handle the security and integrity of the databases: allocate hierarchical rights and privileges to users, rollback aborted transactions, etc. (SQL‐DCL: Data Control Language). A lot of database software is compatible with SQL (especially those intended for Internet access to the data). But they often vary from the ISO norm and are extended with additional programming functionalities specific to each implementation, thus allowing the use of a language similar to C in database statements. MySQL and PostgreSQL5 are two well‐known and widely used open‐source database management systems compatible with SQL. The main drawback of SQL is that it is a text‐based programming language without graphical interface. MySQL and PostgreSQL feature nonetheless modules and extensions helping the user to generate SQL statements from a graphical interface (e.g. ‘phpMyAdmin’ for MySQL and ‘PGAdmin3’ for PostgreSQL). PostgreSQL features a plug‐in called ‘PostGIS’ that extends the original SQL statement with specific instructions for geographical data, allowing calculations of distances and areas, creation of base data for maps, reprojections, etc.
Sample 1
AutoNDA by SimpleDocs

Related to Definition of SQL databases

  • Definition of Shifts (a) A shift starting on or after 6:00 a.m., but before 9:00 a.m. is a day shift.

  • Definition of Sole Source As used in this Article 3.2.16, “Sole Source” means a Trade Contractor or Supplier or Subcontractor specified by name in a Bulletin as the exclusive source from which conforming goods or services may be obtained. Designation of goods or services by reference to a named source accompanied by the qualification “or equal” or similar language is not a designation of a Sole Source as that term is defined herein.

  • GENERAL DEFINITION OF PRODUCTS Item 1: Cafeteria Furniture • Mobile tables on rollers with or without benches or stools. • Round and rectangular cafeteria tables without benches or stools. Item 2: Dormitory Furniture • Metal, wood, or wood clad metal wardrobes, beds and mattresses, night stands, chest of drawers, and single pedestal dormitory student desks with keyboard or center drawers.

  • Definition of Dependent The definition of a dependent shall include the domestic partner of an employee and the dependents of such domestic partner. Any employee claiming a domestic partner and/or the dependents of such domestic partner for purposes of this Article shall have an approved City Affidavit of Domestic Partnership form or a registered State of California Declaration of Domestic Partnership form on file in the Employee Benefits Office, Personnel Department, which identifies that individual as the employee’s domestic partner.

  • Definition of Service Fast Post‐Fault Active Power Recovery is the recovery of a Providing Unit’s MW Output to at least 90% of its pre‐Fault Disturbance MW Output within 250ms of the voltage at the Providing Unit’s Connection Point recovering to at least 90% of its pre‐Fault Disturbance value for any Fault Disturbance that is cleared within 900ms. The Providing Unit must be exporting Active Power to the Power System and must remain connected to the Power System for at least 15 minutes following the Fault Disturbance.

  • Definition of Confidential Information The term “Confidential Information” shall mean all information that either party discloses (a “Disclosing Party”) to the other party (a “Receiving Party”), whether in writing, electronically, or orally and in any form (tangible or intangible), that is confidential, proprietary, or relates to clients or shareholders (each either existing or potential). Confidential Information includes, but is not limited to:

  • Distribution of UDP and TCP queries DNS probes will send UDP or TCP “DNS test” approximating the distribution of these queries.

  • Definition of Grievance A grievance shall be defined as any difference arising out of the interpretation, application, administration, or alleged violation of the Collective Agreement.

  • Definition of Family Members of the employee's immediate family are defined as the employee's spouse, mother, father, brothers, sisters, sons, daughters, stepchildren, mother-in-law, father-in-law, sons-in-law, daughters-in-law, stepparents, grandparents and grandchildren.

  • Definitions For purposes of this Agreement:

Time is Money Join Law Insider Premium to draft better contracts faster.