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How do I use CREATE OR REPLACE?

... replace procedure NG_DROP_TABLE(tableName varchar2) is c int; begin select count(*) into c from user_tables where table_name = upper(tableName); if c = 1 then execute immediate 'drop table '||tableName; end if; end; ...
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How to access pandas groupby dataframe by key

...t uses data-structures already available in the groupby object. You can select different columns using the groupby slicing: In [22]: gb[["A", "B"]].get_group("foo") Out[22]: A B 0 foo 1.624345 2 foo -0.528172 4 foo 0.865408 In [23]: gb["C"].get_group("foo") Out[23]: 0 5 2 ...
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Pushing from local repository to GitHub hosted remote

... my GIT version 1.8.4: From the local repository folder, right click and select 'Git Commit Tool'. There, select the files you want to upload, under 'Unstaged Changes' and click 'Stage Changed' button. (You can initially click on 'Rescan' button to check what files are modified and not uploaded ye...
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Is there a command for formatting HTML in the Atom editor?

...t go to this link: https://atom.io/packages/search?q=prettify Once you've selected a package that does what you want you can install it by using the command: apm install [package name] from the command line or install it using the interface in Preferences. When the package is installed, follow its...
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How does data binding work in AngularJS?

...f it has some extra feature (for example a specific class on the currently selected option) you start to get 3-5 bindings per option. Put three of these widgets on a page (e.g. one to select a country, the other to select a city in the said country, and the third to select a hotel) and you are somew...
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Do I have to guard against SQL injection if I used a dropdown?

... $size = filter_input(INPUT_POST, "size", FILTER_VALIDATE_INT); echo '<select name="size">'; foreach($sizes as $i => $s) { echo '<option value="' . $i . '"' . ($i == $size ? ' selected' : '') . '>' . $s . '</option>'; } echo '</select>'; Then you can use $size in yo...
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How to loop through a HashMap in JSP?

...lt;%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <select name="country"> <c:forEach items="${countries}" var="country"> <option value="${country.key}">${country.value}</option> </c:forEach> </select> You need a Servlet or a S...
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I want to use CASE statement to update some records in sql server 2005

...e values are not permitted and your update may create them. For example: SELECT [Id] ,[QueueId] ,[BaseDimensionId] ,[ElastomerTypeId] ,CASE [CycleId] WHEN 29 THEN 44 WHEN 30 THEN 43 WHEN 31 THEN 43 WHEN 101 THEN 41 WHEN 102 THEN 43 ...
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Which HTML Parser is the best? [closed]

...e because I think it will do what you are after. Its party trick is a CSS selector syntax to find elements, e.g.: String html = "<html><head><title>First parse</title></head>" + "<body><p>Parsed HTML into a doc.</p></body></html>"; Docu...
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How to merge a list of lists with same type of items to a single list of items?

... Use the SelectMany extension method list = listOfList.SelectMany(x => x).ToList(); share | improve this answer | ...