DTM 数据比较器是数据比较和同步的可视化工具。程序根据主键（或唯一键）值的升序依次查看两个表的内容。如果程序找不到两个键值相同的记录，它将记录以黄色将记录对不同的行和高光。如果键的值重合，程序会将它们放在相同的行中，并在绿色和不均等字段中以红色突出显示相等的字段。使用映射时，程序会留下不参与比较的列。 在同步过程中，程序使辅助表的内容等于主表的内容。在此过程中，主表中缺少的记录将从辅助表中删除，不同的记录将更新，而辅助表中不存在的记录将从主表中插入。 您可以使用以下选项更改此行为： 1） 从辅助中删除 - 禁用此选项将阻止从辅助表中删除记录，即使主表中没有此类记录。 2） 按主插入 - 禁用此选项将阻止从主表中添加记录，即使辅助表中没有此类记录。 "映射"要素允许比较两个具有不同结构的表（字段的数量和名称）。 在同步过程中，程序创建一组数据同步的插入、更新和删除语句。用户可以在特殊对话框中选择必要的语句或禁止不必要的语句。
软件信息
终端用户许可协议
License Agreement This License Agreement covers all existing versions of DTM Data Comparer: demo and commercial. License Agreement is a legal agreement between the end-user and DTM soft. By installing or otherwise using DTM Data Comparer, you agree to be bound by the terms of this Agreement. If you do not agree to the terms of License Agreement, please do not install or use DTM Data Comparer. General Information DTM soft is exclusive owner of all DTM Data Comparer copyrights. The product is licensed, not sold. DTM Data Comparer is protected by copyright laws and international copyright treaties. Demo version. Anyone may install and use demo version of DTM Data Comparer for evaluation and testing purposes. Commercial version. You may install and use one copy of DTM Data Comparer on a single computer. The primary user of the computer on which DTM Data Comparer is installed may make a second copy for his or her exclusive use on a portable computer. You may not reverse engineer, modify, decompile, or disassemble DTM Data Comparer. The Software Product is licensed as a single product. Its component parts may not be separated for use on more than one computer. You may not rent, lease, or lend DTM Data Comparer. Also, You may not resell, or otherwise transfer for value, DTM Data Comparer. Without prejudice to any other rights, DTM soft may terminate this License Agreement if you fail to comply with the terms and conditions of this Agreement. In such event, you must destroy all copies of DTM Data Comparer and all of its component parts. You may permanently transfer all of your rights under this license, provided you retain no copies, you transfer all of DTM Data Comparer (including all component parts), and the recipient agrees to the terms of this license. DTM Data Comparer IS DISTRIBUTED "AS IS". NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED. YOU USE DTM Data Comparer AT YOUR OWN RISK. DTM soft WILL NOT BE LIABLE FOR DATA LOSS, DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING OR MISUSING THIS SOFTWARE. Support and Upgrades During one year after ordering, you are entitled to free technical services and support for DTM Data Comparer which is provided to you by DTM soft. During this period, e-mail support is unlimited and includes technical and support questions. Also, during one year, you may access to free updates to DTM Data Comparer when and as DTM soft publishes them on www.sqledit.com. After end of the described period you may continue to use the software product in accordance with the terms of this Agreement except free support and upgrades. After end of the free support and updates period (one year), you may purchase annual Upgrade and Support subscription. If you ordered a few DTM licenses, you will access to free upgrade and support period and will use subscriptions independently.