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How to get the number of days of difference between two dates on mysql?

...lues are used in the calculation In your case, you'd use : mysql> select datediff('2010-04-15', '2010-04-12'); +--------------------------------------+ | datediff('2010-04-15', '2010-04-12') | +--------------------------------------+ | 3 | +--------------...
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How to atomically delete keys matching a pattern using Redis

...helped me out. Another variant if your redis keys contain quotes or other characters that mess up xargs: redis-cli KEYS "prefix:*" | xargs --delim='\n' redis-cli DEL – overthink Sep 16 '11 at 13:31 ...
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Where can I get Google developer key

...velopers Console interface was overhauled again. For the new interface: Select your project from the toolbar. Open the "Gallery" using hamburger menu icon on the left side of the toolbar and select 'API Manager'. Click 'Credentials' in the left-hand navigation. Alternatively, you can click 'Sw...
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Error 1046 No database Selected, how to resolve?

...ation. If you're trying to do this via MySQL Workbench... ...you need to select the appropriate database/catalog in the drop down menu found above the :Object Browser: tab. You can specify the default schema/database/catalog for the connection - click the "Manage Connections" options under the SQL...
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Initialize a byte array to a certain value, other than the default null? [duplicate]

...rrectly, even to fill with 0x00 bytes: Encoding.ASCII.GetBytes(new string((char)0, 100)); – Ben Aug 3 '16 at 19:44 Fun...
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Write a number with two decimal places SQL server

... try this SELECT CONVERT(DECIMAL(10,2),YOURCOLUMN) share | improve this answer | follow | ...
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How to list active / open connections in Oracle?

... Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action: – pistacchio ...
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How do I reset a sequence in Oracle?

...q_name in varchar2 ) is l_val number; begin execute immediate 'select ' || p_seq_name || '.nextval from dual' INTO l_val; execute immediate 'alter sequence ' || p_seq_name || ' increment by -' || l_val || ' minvalue 0'; ...
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Eclipse git checkout (aka, revert)

...ing" view, right click the deleted file in the "Unstaged Changes" list and select "Replace with HEAD Revision" – Vlasta Dolejs Sep 5 '17 at 8:03 add a comment ...
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Pycharm: run only part of my Python file

... easier way. go to File -> Settings -> Keymap Search for Execute Selection in Console and reassign it to a new shortcut, like Crl + Enter. This is the same shortcut to the same action in Spyder and R-Studio. sha...