SQL Server:replace"&&引用；到字符实体（&；amp；）

我有这个样本表：

表1

Column1
-------
Hi&Hello
Hello & Hi
Snacks & Drinks
   Hello World  

问题：在SQL Server中，如何在不影响现有字符实体的情况下将所有

&

替换为字符实体（

&；

）

谢谢

如果确实要在数据库中替换它，可以尝试运行

更新表1集合Column1=REPLACE（Column1，'&'，'&'）

我想您之所以要这样做，是因为您希望在站点上以与数据库中完全相同的方式显示数据。因此，我建议您在显示它（在应用程序端）时退出，因为当您有大量

&；amp或
&；nbsp在数据库中

例如：

在php中，可以使用

htmlspecialchars（）

在java中，您可以
导入静态org.apache.commons.lang.StringEscapeUtils.escapeHtmlescapeHtml（）

在RubyonRails中，可以使用
HTMLEntities.new.encode（）（如果您使用rails3或更新版本，默认情况下应进行转义。）
我假设您询问的原因是因为您拥有的不仅仅是字符实体-我假设它大于5或6，因为如果是那么小的数字，简单的答案是为每个字符实体运行一个update语句，用列中不存在的字符组合（例如|#|#|##）替换开头的符号和。这将需要子字符串等。然后将所有符号更新为&。然后运行另一个update语句，用符号替换您的特殊字符组合。你完了

假设有更多不同的字符集，这是一次性清理吗？如果不是，如果这是您期望正在进行的事情，为什么系统只将符号存储为符号，而将其他东西存储为字符实体？我会先解决这个问题。如果您无法控制，那么我的解决方案可能仍然有效，但需要进一步优化

如果是一次性清理，我认为您需要创建一个临时使用的表，其中包含数据库中可能包含的所有字符实体的列表。您可以在谷歌上搜索HTML字符实体并找到列表，通过剪切和粘贴，您可以在不到30分钟的时间内生成此表

一旦你有了这个表，你的路径就相当清晰了。正如其他人所说，您可能不希望像这样在数据库中存储编码数据。在这种情况下，您只需编写一个游标，并在新的字符实体表中循环，使用replace语句进行更新。但是，如果您确实只想替换符号and，那么您可以在光标中循环，并将每个字符实体开头的符号and替换为列中不可能存在的字符组合，例如|#|#|。之后，数据库中只剩下实际的符号，而不是字符实体的一部分。因此，这与我在第一段中提到的最后两个步骤相同：运行一个查询，将所有符号更新为&。然后运行另一个update语句，用实际的符号替换您的特殊字符组合。
我想把它放在某个地方供人们使用。由于Stackoverflow也是知识的维基：

--https://www.w3.org/TR/xml-entity-names/bycodes.html
UPDATE Items SET Name = REPLACE(Name, '&',      NCHAR(38))
UPDATE Items SET Name = REPLACE(Name, '<',       NCHAR(60))
UPDATE Items SET Name = REPLACE(Name, '>',       NCHAR(62))
UPDATE Items SET Name = REPLACE(Name, 'À',   NCHAR(192))
UPDATE Items SET Name = REPLACE(Name, 'Á',   NCHAR(193))
UPDATE Items SET Name = REPLACE(Name, 'Â',    NCHAR(194))
UPDATE Items SET Name = REPLACE(Name, 'Ã',   NCHAR(195))
UPDATE Items SET Name = REPLACE(Name, 'Ä',     NCHAR(196))
UPDATE Items SET Name = REPLACE(Name, 'Å',    NCHAR(197))
UPDATE Items SET Name = REPLACE(Name, 'Æ',    NCHAR(198))
UPDATE Items SET Name = REPLACE(Name, 'Ç',   NCHAR(199))
UPDATE Items SET Name = REPLACE(Name, 'È',   NCHAR(200))
UPDATE Items SET Name = REPLACE(Name, 'É',   NCHAR(201))
UPDATE Items SET Name = REPLACE(Name, 'Ê',    NCHAR(202))
UPDATE Items SET Name = REPLACE(Name, 'Ë',     NCHAR(203))
UPDATE Items SET Name = REPLACE(Name, 'Ì',   NCHAR(204))
UPDATE Items SET Name = REPLACE(Name, 'Í',   NCHAR(205))
UPDATE Items SET Name = REPLACE(Name, 'Î',    NCHAR(206))
UPDATE Items SET Name = REPLACE(Name, 'Ï',     NCHAR(207))
UPDATE Items SET Name = REPLACE(Name, 'Ð',      NCHAR(208))
UPDATE Items SET Name = REPLACE(Name, 'Ñ',   NCHAR(209))
UPDATE Items SET Name = REPLACE(Name, 'Ò',   NCHAR(210))
UPDATE Items SET Name = REPLACE(Name, 'Ó',   NCHAR(211))
UPDATE Items SET Name = REPLACE(Name, 'Ô',    NCHAR(212))
UPDATE Items SET Name = REPLACE(Name, 'Õ',   NCHAR(213))
UPDATE Items SET Name = REPLACE(Name, 'Ö',     NCHAR(214))
UPDATE Items SET Name = REPLACE(Name, 'Ø',   NCHAR(216))
UPDATE Items SET Name = REPLACE(Name, 'Ù',   NCHAR(217))
UPDATE Items SET Name = REPLACE(Name, 'Ú',   NCHAR(218))
UPDATE Items SET Name = REPLACE(Name, 'Û',    NCHAR(219))
UPDATE Items SET Name = REPLACE(Name, 'Ü',     NCHAR(220))
UPDATE Items SET Name = REPLACE(Name, 'Ý',   NCHAR(221))
UPDATE Items SET Name = REPLACE(Name, 'Þ',    NCHAR(222))
UPDATE Items SET Name = REPLACE(Name, 'ß',    NCHAR(223))
UPDATE Items SET Name = REPLACE(Name, 'à',   NCHAR(224))
UPDATE Items SET Name = REPLACE(Name, 'á',   NCHAR(225))
UPDATE Items SET Name = REPLACE(Name, 'â',    NCHAR(226))
UPDATE Items SET Name = REPLACE(Name, 'ã',   NCHAR(227))
UPDATE Items SET Name = REPLACE(Name, 'ä',     NCHAR(228))
UPDATE Items SET Name = REPLACE(Name, 'å',    NCHAR(229))
UPDATE Items SET Name = REPLACE(Name, 'æ',    NCHAR(230))
UPDATE Items SET Name = REPLACE(Name, 'ç',   NCHAR(231))
UPDATE Items SET Name = REPLACE(Name, 'è',   NCHAR(232))
UPDATE Items SET Name = REPLACE(Name, 'é',   NCHAR(233))
UPDATE Items SET Name = REPLACE(Name, 'ê',    NCHAR(234))
UPDATE Items SET Name = REPLACE(Name, 'ë',     NCHAR(235))
UPDATE Items SET Name = REPLACE(Name, 'ì',   NCHAR(236))
UPDATE Items SET Name = REPLACE(Name, 'í',   NCHAR(237))
UPDATE Items SET Name = REPLACE(Name, 'î',    NCHAR(238))
UPDATE Items SET Name = REPLACE(Name, 'ï',     NCHAR(239))
UPDATE Items SET Name = REPLACE(Name, 'ð',      NCHAR(240))
UPDATE Items SET Name = REPLACE(Name, 'ñ',   NCHAR(241))
UPDATE Items SET Name = REPLACE(Name, 'ò',   NCHAR(242))
UPDATE Items SET Name = REPLACE(Name, 'ó',   NCHAR(243))
UPDATE Items SET Name = REPLACE(Name, 'ô',    NCHAR(244))
UPDATE Items SET Name = REPLACE(Name, 'õ',   NCHAR(245))
UPDATE Items SET Name = REPLACE(Name, 'ö',     NCHAR(246))
UPDATE Items SET Name = REPLACE(Name, 'ø',   NCHAR(248))
UPDATE Items SET Name = REPLACE(Name, 'ù',   NCHAR(249))
UPDATE Items SET Name = REPLACE(Name, 'ú',   NCHAR(250))
UPDATE Items SET Name = REPLACE(Name, 'û',    NCHAR(251))
UPDATE Items SET Name = REPLACE(Name, 'ü',     NCHAR(252))
UPDATE Items SET Name = REPLACE(Name, 'ý',   NCHAR(253))
UPDATE Items SET Name = REPLACE(Name, 'þ',    NCHAR(254))
UPDATE Items SET Name = REPLACE(Name, 'ÿ',     NCHAR(255))
UPDATE Items SET Name = REPLACE(Name, ' ',     NCHAR(160))
UPDATE Items SET Name = REPLACE(Name, '¡',    NCHAR(161))
UPDATE Items SET Name = REPLACE(Name, '¢',     NCHAR(162))
UPDATE Items SET Name = REPLACE(Name, '£',    NCHAR(163))
UPDATE Items SET Name = REPLACE(Name, '¤',   NCHAR(164))
UPDATE Items SET Name = REPLACE(Name, '¥',      NCHAR(165))
UPDATE Items SET Name = REPLACE(Name, '¦',   NCHAR(166))
UPDATE Items SET Name = REPLACE(Name, '§',     NCHAR(167))
UPDATE Items SET Name = REPLACE(Name, '¨',      NCHAR(168))
UPDATE Items SET Name = REPLACE(Name, '©',     NCHAR(169))
UPDATE Items SET Name = REPLACE(Name, 'ª',     NCHAR(170))
UPDATE Items SET Name = REPLACE(Name, '«',    NCHAR(171))
UPDATE Items SET Name = REPLACE(Name, '¬',      NCHAR(172))
UPDATE Items SET Name = REPLACE(Name, '­',      NCHAR(173))
UPDATE Items SET Name = REPLACE(Name, '®',      NCHAR(174))
UPDATE Items SET Name = REPLACE(Name, '¯',     NCHAR(175))
UPDATE Items SET Name = REPLACE(Name, '°',      NCHAR(176))
UPDATE Items SET Name = REPLACE(Name, '±',   NCHAR(177))
UPDATE Items SET Name = REPLACE(Name, '²',     NCHAR(178))
UPDATE Items SET Name = REPLACE(Name, '³',     NCHAR(179))
UPDATE Items SET Name = REPLACE(Name, '´',    NCHAR(180))
UPDATE Items SET Name = REPLACE(Name, 'µ',    NCHAR(181))
UPDATE Items SET Name = REPLACE(Name, '¶',     NCHAR(182))
UPDATE Items SET Name = REPLACE(Name, '¸',    NCHAR(184))
UPDATE Items SET Name = REPLACE(Name, '¹',     NCHAR(185))
UPDATE Items SET Name = REPLACE(Name, 'º',     NCHAR(186))
UPDATE Items SET Name = REPLACE(Name, '»',    NCHAR(187))
UPDATE Items SET Name = REPLACE(Name, '¼',   NCHAR(188))
UPDATE Items SET Name = REPLACE(Name, '½',   NCHAR(189))
UPDATE Items SET Name = REPLACE(Name, '¾',   NCHAR(190))
UPDATE Items SET Name = REPLACE(Name, '¿',   NCHAR(191))
UPDATE Items SET Name = REPLACE(Name, '×',    NCHAR(215))
UPDATE Items SET Name = REPLACE(Name, '÷',   NCHAR(247))
UPDATE Items SET Name = REPLACE(Name, '∀',   NCHAR(8704))
UPDATE Items SET Name = REPLACE(Name, '∂',     NCHAR(8706))
UPDATE Items SET Name = REPLACE(Name, '∃',    NCHAR(8707))
UPDATE Items SET Name = REPLACE(Name, '∅',    NCHAR(8709))
UPDATE Items SET Name = REPLACE(Name, '∇',    NCHAR(8711))
UPDATE Items SET Name = REPLACE(Name, '∈',     NCHAR(8712))
UPDATE Items SET Name = REPLACE(Name, '∉',    NCHAR(8713))
UPDATE Items SET Name = REPLACE(Name, '∋',       NCHAR(8715))
UPDATE Items SET Name = REPLACE(Name, '∏',     NCHAR(8719))
UPDATE Items SET Name = REPLACE(Name, '∑',      NCHAR(8721))
UPDATE Items SET Name = REPLACE(Name, '−',    NCHAR(8722))
UPDATE Items SET Name = REPLACE(Name, '∗',   NCHAR(8727))
UPDATE Items SET Name = REPLACE(Name, '√',    NCHAR(8730))
UPDATE Items SET Name = REPLACE(Name, '∝',     NCHAR(8733))
UPDATE Items SET Name = REPLACE(Name, '∞',    NCHAR(8734))
UPDATE Items SET Name = REPLACE(Name, '∠',      NCHAR(8736))
UPDATE Items SET Name = REPLACE(Name, '∧',      NCHAR(8743))
UPDATE Items SET Name = REPLACE(Name, '∨',       NCHAR(8744))
UPDATE Items SET Name = REPLACE(Name, '∩',      NCHAR(8745))
UPDATE Items SET Name = REPLACE(Name, '∪',      NCHAR(8746))
UPDATE Items SET Name = REPLACE(Name, '∫',      NCHAR(8747))
UPDATE Items SET Name = REPLACE(Name, '∴',   NCHAR(8756))
UPDATE Items SET Name = REPLACE(Name, '∼',      NCHAR(8764))
UPDATE Items SET Name = REPLACE(Name, '≅',     NCHAR(8773))
UPDATE Items SET Name = REPLACE(Name, '≈',    NCHAR(8776))
UPDATE Items SET Name = REPLACE(Name, '≠',       NCHAR(8800))
UPDATE Items SET Name = REPLACE(Name, '≡',    NCHAR(8801))
UPDATE Items SET Name = REPLACE(Name, '≤',       NCHAR(8804))
UPDATE Items SET Name = REPLACE(Name, '≥',       NCHAR(8805))
UPDATE Items SET Name = REPLACE(Name, '⊂',      NCHAR(8834))
UPDATE Items SET Name = REPLACE(Name, '⊃',      NCHAR(8835))
UPDATE Items SET Name = REPLACE(Name, '⊄',     NCHAR(8836))
UPDATE Items SET Name = REPLACE(Name, '⊆',     NCHAR(8838))
UPDATE Items SET Name = REPLACE(Name, '⊇',     NCHAR(8839))
UPDATE Items SET Name = REPLACE(Name, '⊕',    NCHAR(8853))
UPDATE Items SET Name = REPLACE(Name, '⊗',   NCHAR(8855))
UPDATE Items SET Name = REPLACE(Name, '⊥',     NCHAR(8869))
UPDATE Items SET Name = REPLACE(Name, '⋅',     NCHAR(8901))
UPDATE Items SET Name = REPLACE(Name, 'Α',    NCHAR(913))
UPDATE Items SET Name = REPLACE(Name, 'Β',     NCHAR(914))
UPDATE Items SET Name = REPLACE(Name, 'Γ',    NCHAR(915))
UPDATE Items SET Name = REPLACE(Name, 'Δ',    NCHAR(916))
UPDATE Items SET Name = REPLACE(Name, 'Ε',  NCHAR(917))
UPDATE Items SET Name = REPLACE(Name, 'Ζ',     NCHAR(918))
UPDATE Items SET Name = REPLACE(Name, 'Η',      NCHAR(919))
UPDATE Items SET Name = REPLACE(Name, 'Θ',    NCHAR(920))
UPDATE Items SET Name = REPLACE(Name, 'Ι',     NCHAR(921))
UPDATE Items SET Name = REPLACE(Name, 'Κ',    NCHAR(922))
UPDATE Items SET Name = REPLACE(Name, 'Λ',   NCHAR(923))
UPDATE Items SET Name = REPLACE(Name, 'Μ',       NCHAR(924))
UPDATE Items SET Name = REPLACE(Name, 'Ν',       NCHAR(925))
UPDATE Items SET Name = REPLACE(Name, 'Ξ',       NCHAR(926))
UPDATE Items SET Name = REPLACE(Name, 'Ο',  NCHAR(927))
UPDATE Items SET Name = REPLACE(Name, 'Π',       NCHAR(928))
UPDATE Items SET Name = REPLACE(Name, 'Ρ',      NCHAR(929))
UPDATE Items SET Name = REPLACE(Name, 'Σ',    NCHAR(931))
UPDATE Items SET Name = REPLACE(Name, 'Τ',      NCHAR(932))
UPDATE Items SET Name = REPLACE(Name, 'Υ',  NCHAR(933))
UPDATE Items SET Name = REPLACE(Name, 'Φ',      NCHAR(934))
UPDATE Items SET Name = REPLACE(Name, 'Χ',      NCHAR(935))
UPDATE Items SET Name = REPLACE(Name, 'Ψ',      NCHAR(936))
UPDATE Items SET Name = REPLACE(Name, 'Ω',    NCHAR(937))
UPDATE Items SET Name = REPLACE(Name, 'α',    NCHAR(945))
UPDATE Items SET Name = REPLACE(Name, 'β',     NCHAR(946))
UPDATE Items SET Name = REPLACE(Name, 'γ',    NCHAR(947))
UPDATE Items SET Name = REPLACE(Name, 'δ',    NCHAR(948))
UPDATE Items SET Name = REPLACE(Name, 'ε',  NCHAR(949))
UPDATE Items SET Name = REPLACE(Name, 'ζ',     NCHAR(950))
UPDATE Items SET Name = REPLACE(Name, 'η',      NCHAR(951))
UPDATE Items SET Name = REPLACE(Name, 'θ',    NCHAR(952))
UPDATE Items SET Name = REPLACE(Name, 'ι',     NCHAR(953))
UPDATE Items SET Name = REPLACE(Name, 'κ',    NCHAR(954))
UPDATE Items SET Name = REPLACE(Name, 'λ',   NCHAR(955))
UPDATE Items SET Name = REPLACE(Name, 'μ',       NCHAR(956))
UPDATE Items SET Name = REPLACE(Name, 'ν',       NCHAR(957))
UPDATE Items SET Name = REPLACE(Name, 'ξ',       NCHAR(958))
UPDATE Items SET Name = REPLACE(Name, 'ο',  NCHAR(959))
UPDATE Items SET Name = REPLACE(Name, 'π',       NCHAR(960))
UPDATE Items SET Name = REPLACE(Name, 'ρ',      NCHAR(961))
UPDATE Items SET Name = REPLACE(Name, 'ς',   NCHAR(962))
UPDATE Items SET Name = REPLACE(Name, 'σ',    NCHAR(963))
UPDATE Items SET Name = REPLACE(Name, 'τ',      NCHAR(964))
UPDATE Items SET Name = REPLACE(Name, 'υ',  NCHAR(965))
UPDATE Items SET Name = REPLACE(Name, 'φ',      NCHAR(966))
UPDATE Items SET Name = REPLACE(Name, 'χ',      NCHAR(967))
UPDATE Items SET Name = REPLACE(Name, 'ψ',      NCHAR(968))
UPDATE Items SET Name = REPLACE(Name, 'ω',    NCHAR(969))
UPDATE Items SET Name = REPLACE(Name, 'ϑ', NCHAR(977))
UPDATE Items SET Name = REPLACE(Name, 'ϒ',    NCHAR(978))
UPDATE Items SET Name = REPLACE(Name, 'ϖ',      NCHAR(982))
UPDATE Items SET Name = REPLACE(Name, 'Œ',    NCHAR(338))
UPDATE Items SET Name = REPLACE(Name, 'œ',    NCHAR(339))
UPDATE Items SET Name = REPLACE(Name, 'Š',   NCHAR(352))
UPDATE Items SET Name = REPLACE(Name, 'š',   NCHAR(353))
UPDATE Items SET Name = REPLACE(Name, 'Ÿ',     NCHAR(376))
UPDATE Items SET Name = REPLACE(Name, 'ƒ',     NCHAR(402))
UPDATE Items SET Name = REPLACE(Name, 'ˆ',     NCHAR(710))
UPDATE Items SET Name = REPLACE(Name, '˜',    NCHAR(732))
UPDATE Items SET Name = REPLACE(Name, ' ',     NCHAR(8194))
UPDATE Items SET Name = REPLACE(Name, ' ',     NCHAR(8195))
UPDATE Items SET Name = REPLACE(Name, ' ',   NCHAR(8201))
UPDATE Items SET Name = REPLACE(Name, '‌',     NCHAR(8204))
UPDATE Items SET Name = REPLACE(Name, '‍',      NCHAR(8205))
UPDATE Items SET Name = REPLACE(Name, '‎',      NCHAR(8206))
UPDATE Items SET Name = REPLACE(Name, '‏',      NCHAR(8207))
UPDATE Items SET Name = REPLACE(Name, '–',    NCHAR(8211))
UPDATE Items SET Name = REPLACE(Name, '—',    NCHAR(8212))
UPDATE Items SET Name = REPLACE(Name, '‘',    NCHAR(8216))
UPDATE Items SET Name = REPLACE(Name, '’',    NCHAR(8217))
UPDATE Items SET Name = REPLACE(Name, '‚',    NCHAR(8218))
UPDATE Items SET Name = REPLACE(Name, '“',    NCHAR(8220))
UPDATE Items SET Name = REPLACE(Name, '”',    NCHAR(8221))
UPDATE Items SET Name = REPLACE(Name, '„',    NCHAR(8222))
UPDATE Items SET Name = REPLACE(Name, '†',   NCHAR(8224))
UPDATE Items SET Name = REPLACE(Name, '‡',   NCHAR(8225))
UPDATE Items SET Name = REPLACE(Name, '•',     NCHAR(8226))
UPDATE Items SET Name = REPLACE(Name, '…',   NCHAR(8230))
UPDATE Items SET Name = REPLACE(Name, '‰',   NCHAR(8240))
UPDATE Items SET Name = REPLACE(Name, '′',    NCHAR(8242))
UPDATE Items SET Name = REPLACE(Name, '″',    NCHAR(8243))
UPDATE Items SET Name = REPLACE(Name, '‹',   NCHAR(8249))
UPDATE Items SET Name = REPLACE(Name, '›',   NCHAR(8250))
UPDATE Items SET Name = REPLACE(Name, '‾',    NCHAR(8254))
UPDATE Items SET Name = REPLACE(Name, '€',     NCHAR(8364))
UPDATE Items SET Name = REPLACE(Name, '™',    NCHAR(8482))
UPDATE Items SET Name = REPLACE(Name, '←',     NCHAR(8592))
UPDATE Items SET Name = REPLACE(Name, '↑',     NCHAR(8593))
UPDATE Items SET Name = REPLACE(Name, '→',     NCHAR(8594))
UPDATE Items SET Name = REPLACE(Name, '↓',     NCHAR(8595))
UPDATE Items SET Name = REPLACE(Name, '↔',     NCHAR(8596))
UPDATE Items SET Name = REPLACE(Name, '↵',    NCHAR(8629))
UPDATE Items SET Name = REPLACE(Name, '⌈',    NCHAR(8968))
UPDATE Items SET Name = REPLACE(Name, '⌉',    NCHAR(8969))
UPDATE Items SET Name = REPLACE(Name, '⌊',   NCHAR(8970))
UPDATE Items SET Name = REPLACE(Name, '⌋',   NCHAR(8971))
UPDATE Items SET Name = REPLACE(Name, '◊',      NCHAR(9674))
UPDATE Items SET Name = REPLACE(Name, '♠',   NCHAR(9824))
UPDATE Items SET Name = REPLACE(Name, '♣',    NCHAR(9827))
UPDATE Items SET Name = REPLACE(Name, '♥',   NCHAR(9829))
UPDATE Items SET Name = REPLACE(Name, '♦',    NCHAR(9830))

使用replace（col，“&；”，“&”）选择您想要的方向<代码>&
->
&
，或者反之亦然？不确定这听起来是否愚蠢或更好，你可以回答所有->然后只替换所有-&这不是一个简单的方法，很遗憾。将实体转换回字符比将实体转换回字符更容易。当然，自定义函数会有所帮助，但我非常怀疑将实体保留在DB中的原因。完成查询并在服务器端代码中对其进行URL解码-这将转变为&；去&离开&独自一人。然后对其进行URL编码，您将得到&；对所有人来说。但真正的答案是在插入/更新时清理数据谢谢你的回答。实际上，我已经尝试过使用HttpUtility.Encode（我实际上使用的是ASP.Net网页）。它确实将所有的“&”改为“&；”但是它并没有改变其他角色实体（等等），这就是为什么我想在DB中替换它们。谢谢！我通过再次解码和重新编码解决了我的问题。非常感谢你！