Azure Sql：无法替换 HTML 字符串

Question

我在数据库中有以下 html

<table>
    <tbody>        
        <tr>
            <td>
                <table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">
                    <tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </td>
        </tr>
        <!-- /button -->
        <!-- spacing -->
        <tr>
            <td width="100%" height="15"></td>
        </tr>
    </tbody>
</table>

并且我正在尝试附加额外的 table 行以使 html 如下所示

    <tr>
        <td>
            <table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">
                <tbody>
                    <tr>
                        <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                            <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                            </span>
                        </td>
                    </tr>
                    <tr style="visibility: __displayProp__">
                        <td style="font-family: Helvetica, arial, sans-serif; font-size: 14px; color: #95a5a6; text-align: left; line-height: 35px; text-align: center">
                            <span style="color: #FFFFFF; font-weight: 300;">
                                <a style="color: #4d4d4d; text-align: center;"  href="__CancelLink__" target="_blank">notification.templates.key</a>
                            </span>
                        </td>
                    </tr>
                </tbody>
            </table>
        </td>
    </tr>

当我如下所示手动替换 html 时，它工作正常。

DECLARE @html varchar(MAX) = '<table>
    <tbody>        
        <tr>
            <td>
                <table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">
                    <tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </td>
        </tr>
        <!-- /button -->
        <!-- spacing -->
        <tr>
            <td width="100%" height="15"></td>
        </tr>
    </tbody>
</table>'
SELECT @html = REPLACE(@html,
            '<tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>'
            ,'<table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">
                <tbody>
                    <tr>
                        <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                            <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                            </span>
                        </td>
                    </tr>
                    <tr style="visibility: __displayProp__">
                        <td style="font-family: Helvetica, arial, sans-serif; font-size: 14px; color: #95a5a6; text-align: left; line-height: 35px; text-align: center">
                            <span style="color: #FFFFFF; font-weight: 300;">
                                <a style="color: #4d4d4d; text-align: center;"  href="__CancelLink__" target="_blank">notification.templates.key</a>
                            </span>
                        </td>
                    </tr>
                </tbody>')
                              
            print @html

但是当我尝试直接在 db colmn 的 html 上进行操作时，如下所示，它在

处不起作用

                DECLARE @html VARCHAR(MAX) =    (SELECT top 1 BodyText
                                                FROM [MessageTemplate]
                                                WHERE body LIKE '%<table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">%')
                  SELECT @html = REPLACE(@html,
                '<tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>'
                ,'<table height="36" align="center" valign="middle" border="0" cellpadding="0" cellspacing="0" class="tablet-button">
                    <tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle" height="36" style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;" href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                        <tr style="visibility: __displayProp__">
                            <td style="font-family: Helvetica, arial, sans-serif; font-size: 14px; color: #95a5a6; text-align: left; line-height: 35px; text-align: center">
                                <span style="color: #FFFFFF; font-weight: 300;">
                                    <a style="color: #4d4d4d; text-align: center;"  href="__CancelLink__" target="_blank">notification.templates.key</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>')
                                  
                print @html

有人可以帮我解决这个问题吗？

Answer 1

请尝试以下解决方案。

它将HTML视为(X)HTML，即XML。

在那之后 MS SQL 服务器的 XQuery 通过 .modify() 方法使它变得容易。

SQL

DECLARE @tbl TABLE (ID INT IDENTITY PRIMARY KEY, BodyText XML);
INSERT INTO @tbl (BodyText) VALUES
(N'<table>
    <tbody>
        <tr>
            <td>
                <table height="36" align="center" valign="middle" border="0"
                       cellpadding="0" cellspacing="0" class="tablet-button">
                    <tbody>
                        <tr>
                            <td width="auto" align="center" valign="middle"
                                height="36"
                                style=" background-color: __CustomButtonBackgroundColor__; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; background-clip: padding-box; font-size: 15px; font-family: Helvetica, arial, sans-serif; text-align: center; color: __CustomButtonForegroundColor__; font-weight: 10; padding-left: 25px; padding-right: 25px;">
                                <span style="color: __CustomButtonForegroundColor__; font-weight: 300;">
                                    <a style="color: __CustomButtonForegroundColor__; text-align: center; text-decoration: none;"
                                       href="__ConfirmLink__" target="_blank">Confirm</a>
                                </span>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </td>
        </tr>
        <!-- /button -->
        <!-- spacing -->
        <tr>
            <td width="100%" height="15"></td>
        </tr>
    </tbody>
</table>');

DECLARE @newTR XML =
N'<tr style="visibility: __displayProp__">
    <td style="font-family: Helvetica, arial, sans-serif; font-size: 14px; color: #95a5a6; text-align: left; line-height: 35px; text-align: center">
        <span style="color: #FFFFFF; font-weight: 300;">
            <a style="color: #4d4d4d; text-align: center;" href="__CancelLink__"
               target="_blank">notification.templates.key</a>
        </span>
    </td>
</tr>';

DECLARE @html XML = (SELECT BodyText FROM @tbl);

-- before
SELECT @html;

SET @html.modify('insert sql:variable("@newTR") into (/table/tbody/tr/td/table/tbody)[1]');

-- after
SELECT @html;

Azure Sql：无法替换 HTML 字符串

Azure Sql : Unable to Replace HTML String

sql

sql-server

azure-sql-database