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  1. Java Spring: How to use `@Value` annotation to inject an …

    Jan 31, 2013 · There are 17 ways to override a property value in spring boot, one of them is environment variables (Item 10. in the The only trick is that you have to convert property …

  2. How to access a value defined in the application.properties file in ...

    May 29, 2015 · 12 You can use the @Value to load variables from the application.properties if you will use this value in one place, but if you need a more centralized way to load these variables …

  3. c# - Get dictionary key by value - Stack Overflow

    Once we find a match, we return its key. If we don’t find a matching value at the end of our loop iteration, we return the default value for strings. because method also provides the extra …

  4. What's the difference between passing by reference vs. passing by …

    First and foremost, the "pass by value vs. pass by reference" distinction as defined in the CS theory is now obsolete because the technique originally defined as "pass by reference" has …

  5. Extract column value based on another column in Pandas

    I am kind of getting stuck on extracting value of one variable conditioning on another variable. For example, the following dataframe: A B p1 1 p1 2 p3 3 p2 4 How can I get the value of A when …

  6. Set value of one Pandas column based on value in another column

    Set value of one Pandas column based on value in another column Asked 7 years, 8 months ago Modified 2 years, 2 months ago Viewed 509k times

  7. Search all tables, all columns for a specific value SQL Server

    I have a specific value, let's say string 'comments'. I need to find all instances of this in the database as I need to do an update on the format to change it to (*) Comments. How can I do …

  8. How can I query a value in SQL Server XML column

    Apr 27, 2012 · I have following XML stored in a XML column (called Roles) in a SQL Server database.

  9. python - How to get value counts for multiple columns at once in …

    Given a Pandas DataFrame that has multiple columns with categorical values (0 or 1), is it possible to conveniently get the value_counts for every column at the same time? For …

  10. How to define an enum with string value? - Stack Overflow

    Dec 21, 2011 · You can't - enum values have to be integral values. You can either use attributes to associate a string value with each enum value, or in this case if every separator is a single …