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create tablespace OSDB datafile 'F:\oracle\oradata\glsqjz\OSDB.ora' size 100m reuse default storage(initial 500k next 500k pctincrease 20);
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create user OSUSER identified by OSUSER;//identified by ºóÃæµÄÊÇÃÜÂë£¬Ç°ÃæµÄÊÇÓû§Ãû
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grant resource,connect,RECOVERY_CATALOG_OWNER to OSUSER ;
grant create table to OSUSER ;
alter user OSUSER quota unlimited ON OSDB;
alter user OSUSER default tablespace OSDB;
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DROP TABLESPACE TableSpaceName INCLUDING CONTENTS AND DATAFILES;
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DROP USER User_Name CASCADE
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ÔÚɾ³ýÒ»¸ö±íÖеÄÈ«²¿Êý¾Ýʱ£¬ÐëʹÓÃTRUNCATE TABLE ±íÃû;ÒòΪÓÃDROP TABLE£¬DELETE * from ±íÃûʱ£¬TABLESPACE±í¿Õ¼ä¸Ã±íµÄÕ¼Óÿռ䲢δÊÍ·Å£¬·´¸´¼¸´ÎDROP£¬DELETE²Ù×÷ºó£¬¸ÃTABLESPACEÉϰÙÕ׵Ŀռä¾Í±»ºÄ¹âÁË¡£


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1.ÏÂÔØOracle Client Package
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1.ÏÂÔØOracle Client Package
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http://www.oracle.com/technology/software/tech/oci/instantclient/htdocs/winsoft.html
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Client Package – Basic
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required to run OCI, OCCI, and JDBC-OC ......

Oracle±í¿Õ¼ä³£ÓòÙ×÷

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   >select username from all_users;
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   >select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
    from dba_tablespaces t, dba_data_files d
    wher ......

Oracle trunc º¯ÊýµÄʹÓÃ

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 select trunc(5.75),trunc(5.75,1),trunc(5.75,-1),trunc(556.234,-2) from dual;
 
 
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TRUNC(5.75) TRUNC(5.75,1) TRUNC(5.75,-1) TRUNC(556.234,-2)
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