html - Web link to specific whatsapp contact - Stack Overflow
May 20, 2015 · You can now use a very simple API https://wa.me/ to perform this task where you can provide a valid whatsapp contact number like 15555555555 ( add country code, remove all '+', '-', brackets, spaces or leading zeros).
What is the difference between a schema and a table and a …
Apr 25, 2017 · A relation schema is the logical definition of a table - it defines what the name of the table is, and what the name and type of each column is. It's like a plan or a blueprint. A database schema is the collection of relation schemas for a whole database. A table is a structure with a bunch of rows (aka "tuples"), each of which has the ...
Multiple aggregations of the same column using pandas …
Pandas < 0.25. In more recent versions of pandas leading upto 0.24, if using a dictionary for specifying column names for the aggregation output, you will get a FutureWarning:
python - Named colors in matplotlib - Stack Overflow
Additional named colors. Updated 2017-10-25. I merged my previous updates into this section. xkcd. If you would like to use additional named colors when plotting with matplotlib, you can use the xkcd crowdsourced color names, via the 'xkcd:' prefix:
oop - What is the difference between association, aggregation and ...
May 20, 2009 · In their definitions, the distinction between an "aggregation" and a "composition" is based on the fact if it allows sharing a part between two or more wholes. They define "compositions" as having non-shareable (exclusive) parts, …
What are the differences between if-else and else-if? [closed]
Apr 13, 2017 · How would you define the following, as this is where I am running into issues: if it's sunny go outside. if it's sunny go to park. if it's sunny go to the store. if it's sunny go to the discoteck. if it's stormy go downstairs. if it's stormy go in the living room. if it's stormy go into the parlor. if it's stormy go into your bedroom. –
What does file:///android_asset/www/index.html mean?
Jul 10, 2017 · It does imply an absolute path name pointing to the root directory in any environment, but in the context of Android, it's a convention to tell the Android run-time to say " Here, the directory www has a file called index.html located in the assets folder in the root of the project ". That is how assets are loaded at runtime, for example, a ...
How to add a new column to an existing DataFrame
to insert a new column at a given location (0 <= loc <= amount of columns) in a data frame, just use Dataframe.insert: DataFrame.insert(loc, column, value) Therefore, if you want to add the column e at the end of a data frame called df, you can use: e = [-0.335485, -1.166658, -0.385571]
sql - Get list of all tables in Oracle? - Stack Overflow
Oct 15, 2008 · 18. Execute the below commands: Show all tables in the Oracle Database. sql> SELECT table_name FROM dba_tables; Show tables owned by the current user. sql> SELECT table_name FROM user_tables; Show tables that are accessible by the current user. sql> SELECT table_name FROM all_tables ORDER BY table_name;