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SELECT /*+ index(TB_ALIAS IX_G_COST3) */
TB_ALIAS.*
from g_Cost TB_ALIAS
WHERE Item_Two = 0
AND Flight_Date >= To_Date('20061201', 'YYYYMMDD')
AND Flight_Date <= To_Date('20061231', 'YYYYMMDD');
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DELETE /*+ index(TB_ALIAS IX_G_COST1) */
from g_Cost TB_ALIAS
WHERE ITEM_NAME = 'Сʱ·Ñ';
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column_name2 column_type [not null] [check (expression)]
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SELECT max(SYS_CONNECT_BY_PATH(COLUMN_NAME, ','))
from (SELECT A.COLUMN_NAME, ROWNUM AS ROWNO
from USER_TAB_COLUMNS A
WHERE TABLE_NAME = 'A_USER'
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