a picture from Tirana, the computer point of Ivano
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SELECT * from dba_data_files; |
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select sum(bytes / (1024*1024)) "DB Size in MB" from dba_data_files; |
To set in a single session the decimal separator, for example when you need to cast some string in numbers you can use the next istruction :
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ALTER SESSION SET NLS_NUMERIC_CHARACTERS ='. '; |
in this case the “decimal separator” is the point “.”. if you want the parameter is set inside a procedure or a function you can write like…
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In Oracle there are two usefull function to format a timestamp to string and vceversa…. To format a date to string you can use TO_CHAR function like this:
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SELECT TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SSxFF') from dual; |
For viceversa To format a string to date you can use TO_ function like this:
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SELECT TO_DATE('2003/07/09', 'yyyy/mm/dd') from dual; |
The format mask list: Parameter Explanation YEAR Year, spelled out…
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Per ottenere le informazioni di versione da una console Oracle o da plsql è sufficiente utilizzare il seguente predicato select * from v$version where banner like ‘Oracle%’;
http://android-developers.blogspot.it/2008/03/linkify-your-text.html
