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--Size of All Table Space --1. Used Space SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS "USED SPACE(IN GB)" FRO 阅读全文
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Compare, sort, and delete duplicate lines in Notepad ++ Organize Lines: Since version 6.5.2 the app has a native functionality to draw lines Simply go 阅读全文
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http://www.dba-oracle.com/t_alter_table_modify_column_syntax_example.htm For complete tips on Oracle alter table syntax, see the book "Easy Oracle Jum 阅读全文