英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Microsoft Access - Wikipedia
    Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational Access Database Engine (ACE) with a graphical user interface and software-development tools It is part of the Microsoft 365 suite of applications, included in the Professional and higher editions or sold separately Microsoft Access stores data in its own format based on the Access Database
  • Access Database Engine - Wikipedia
    The Access Database Engine (also Office Access Connectivity Engine or ACE and formerly Microsoft Jet Database Engine, Microsoft JET Engine or simply Jet) is a database engine on which several Microsoft products have been built The first version of Jet was developed in 1992, consisting of three modules which could be used to manipulate a database
  • Comparison of relational database management systems
    The following tables compare general and technical information for a number of relational database management systems Please see the individual products' articles for further information
  • Relational database - Wikipedia
    A relational database (RDB[1]) is a database based on the relational model of data, as proposed by E F Codd in 1970 [2] A Relational Database Management System (RDBMS) is a type of database management system that stores data in a structured format using rows and columns Many relational database systems are equipped with the option of using SQL (Structured Query Language) for querying and
  • Table (database) - Wikipedia
    In a database, a table is a collection of related data organized in table format (consisting of columns and rows) In relational databases, and flat file databases, a table is a set of data elements (values) using a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect [1] A table has a specified number of columns, but
  • Database schema - Wikipedia
    The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS) The term "schema" refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases)
  • AutoNumber - Wikipedia
    AutoNumber is a type of data used in Microsoft Access tables to generate an automatically incremented numeric counter It may be used to create an identity column which uniquely identifies each record of a table Only one AutoNumber is allowed in each table The data type was called Counter in Access 2 0 [1]
  • Entity–attribute–value model - Wikipedia
    An entity–attribute–value model (EAV) is a data model optimized for the space-efficient storage of sparse—or ad-hoc —property or data values, intended for situations where runtime usage patterns are arbitrary, subject to user variation, or otherwise unforeseeable using a fixed design The use-case targets applications which offer a large or rich system of defined property types, which





中文字典-英文字典  2005-2009