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首页 > 控件 > VCL & CLX 组件 > 数据库 > PostgreSQL Data Access Components
PostgreSQL Data Access Components
产品编号:XK06595
如何获得此产品的“本地化服务”
出 版 商: Devart (formerly Core Lab) 版  本:
语  言: 英文 授权期限: 1年
上架时间: 2009/1/13 更新时间: 2009/1/13
交货方式: 电子授权 配货周期: 15个工作日
   
市场价格:
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中文简介 English 该厂商所有产品  

PostgreSQL Data Access Components 是一个控件库,提供从Delphi, Delphi for .NET, and C++Builder直接访问PostgreSQL数据库服务器的作用。使用PgDAC无需部署任何附加的库,开发人员就可以快速开发出PostgreSQL 数据应用程序。

Key Features

The following list describes the main features of PostgreSQL Data Access Components.

Direct access to server data without using client library. Does not require installation of other data provider layers (such as BDE and ODBC)
Full support of the latest versions of PostgreSQL Server
Support for all PostgreSQL Server data types
Disconnected Model with automatic connection control for working with data offline
Local Failover for detecting connection loss and implicitly reexecuting certain operations
All types of local sorting and filtering, including by calculated and lookup fields
Automatic data updating with TPgQuery, TPgTable, and TPgStoredProc components
Unicode and national charset support
Supports many PostgreSQL-specific features, such as notifications, notices, and sequences
Advanced script execution functionality with the TPgScript component
Support for using macros in SQL
Easy migration from BDE with Migration Wizard
Lets you use Professional Edition of Delphi and C++Builder to develop client/server applications
Includes annual PgDAC Subscription with Priority Support


 

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提问人: Tilly 发布时间: 2014/2/18 22:48:40
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提问人: Vinhtho 发布时间: 2014/2/6 11:02:27
咨询内容: and derived snteametts (merge in ORACLE, replace in MySQL is missing) for the following databases:- ORACLE (9i und 10g)- DB2- SQL Server- MySQLJonathan Gennick explains the ANSI SQL commands and the special implementations of the different databases. For every statement you will find at least one example that can be tested on Jonathan's example data (available from the O'Reilly website). This book does NOT describe the DDL (e.g. create table) or DCL (e.g. grant) snteametts of the respective databases. Maybe this book should have been named SQL (DML) pocket guide to avoid different expectations.Being an ORACLE person, I can not comment much on the correctness of the information about the other databases, however I found it quite interesting to see the comparison (ORACLE seems to implement most options).I found the organization of the book a bit strange when I read it from cover to back (I would have placed type conversions and literals together). If you are using this book as a reference this should not concern you because I found the index to be very good. A chapter numbering (or bigger differences in the font size for the chapter levels) would have made it easier for me to keep track of the subchapter level while reading.The coverage of the DML statement's possibilities is quite high and lots of exceptions are covered. I (re)learned a lot of things like WITH in ORACLE, NVL2, CASE statement, RETURNING with UPDATE, INSERT und DELETE when I read this book.I will continue to use this book as a starting point when I don't remember how to use a certain SQL/DML feature (reference lookup). SQL Pocket Reference already saved a colleague of mine valuable hours (because I just reread about the MERGE statement). You will not be able to learn SQL with this book but you will probably save some time with it, if you write DML a lot.
 
提问人: Vinhtho 发布时间: 2014/2/6 11:02:23
咨询内容: and derived snteametts (merge in ORACLE, replace in MySQL is missing) for the following databases:- ORACLE (9i und 10g)- DB2- SQL Server- MySQLJonathan Gennick explains the ANSI SQL commands and the special implementations of the different databases. For every statement you will find at least one example that can be tested on Jonathan's example data (available from the O'Reilly website). This book does NOT describe the DDL (e.g. create table) or DCL (e.g. grant) snteametts of the respective databases. Maybe this book should have been named SQL (DML) pocket guide to avoid different expectations.Being an ORACLE person, I can not comment much on the correctness of the information about the other databases, however I found it quite interesting to see the comparison (ORACLE seems to implement most options).I found the organization of the book a bit strange when I read it from cover to back (I would have placed type conversions and literals together). If you are using this book as a reference this should not concern you because I found the index to be very good. A chapter numbering (or bigger differences in the font size for the chapter levels) would have made it easier for me to keep track of the subchapter level while reading.The coverage of the DML statement's possibilities is quite high and lots of exceptions are covered. I (re)learned a lot of things like WITH in ORACLE, NVL2, CASE statement, RETURNING with UPDATE, INSERT und DELETE when I read this book.I will continue to use this book as a starting point when I don't remember how to use a certain SQL/DML feature (reference lookup). SQL Pocket Reference already saved a colleague of mine valuable hours (because I just reread about the MERGE statement). You will not be able to learn SQL with this book but you will probably save some time with it, if you write DML a lot.
 
提问人: Joseph 发布时间: 2014/2/6 21:00:48
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提问人: Vinhtho 发布时间: 2014/2/6 11:02:29
咨询内容: and derived snteametts (merge in ORACLE, replace in MySQL is missing) for the following databases:- ORACLE (9i und 10g)- DB2- SQL Server- MySQLJonathan Gennick explains the ANSI SQL commands and the special implementations of the different databases. For every statement you will find at least one example that can be tested on Jonathan's example data (available from the O'Reilly website). This book does NOT describe the DDL (e.g. create table) or DCL (e.g. grant) snteametts of the respective databases. Maybe this book should have been named SQL (DML) pocket guide to avoid different expectations.Being an ORACLE person, I can not comment much on the correctness of the information about the other databases, however I found it quite interesting to see the comparison (ORACLE seems to implement most options).I found the organization of the book a bit strange when I read it from cover to back (I would have placed type conversions and literals together). If you are using this book as a reference this should not concern you because I found the index to be very good. A chapter numbering (or bigger differences in the font size for the chapter levels) would have made it easier for me to keep track of the subchapter level while reading.The coverage of the DML statement's possibilities is quite high and lots of exceptions are covered. I (re)learned a lot of things like WITH in ORACLE, NVL2, CASE statement, RETURNING with UPDATE, INSERT und DELETE when I read this book.I will continue to use this book as a starting point when I don't remember how to use a certain SQL/DML feature (reference lookup). SQL Pocket Reference already saved a colleague of mine valuable hours (because I just reread about the MERGE statement). You will not be able to learn SQL with this book but you will probably save some time with it, if you write DML a lot.
 
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