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1.
select 'Drop table '||table_name||';' from all_tables where owner='Ҫɾ³ýµÄÓû§Ãû£¨×¢ÒâÒª´óд£©';
2.Oracleɾ³ýÓû§±í ÒÔÓû§testΪÀý
for example: declare cursor cur1 is select table_name from dba_tables where owner='TEST'; begin for cur2 in cur1 loop execute immediate 'drop table test.'||cur2.table_name; end loop; end;
3.Õâ¸öɾ³ýµ±Ç°Óû§µÄËùÓжÔÏó(±í¡¢ÊÓͼ¡¢´¥·¢Æ÷¡¢´æ´¢¹ý³Ì¡¢º¯Êý)
DECLARE TYPE name_list IS TABLE OF VARCHAR2(40); TYPE type_list IS TABLE OF VARCHAR2(20); Tab_name name_listname_list:=name_list(); Tab_type type_listtype_list:=type_list(); sql_str VARCHAR2(500); BEGIN sql_str := 'select uo.object_name,uo.object_type from user_objects uo where uo.object_type not in(''INDEX'',''LOB'') order by uo.object_type desc'; EXECUTE IMMEDIATE sql_str BULK COLLECT INTO tab_name,tab_type; FOR i IN Tab_name.FIRST.. Tab_name.LAST LOOP sql_str := 'DROP ' || Tab_type(i) || ' ' || Tab_name(i); EXECUTE IMMEDIATE sql_str; END LOOP; END;
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