oracle 显示问题:
SELECT "century" FROM (select to_char(sysdate,'cc') as "century" from dual); SELECT century FROM (select to_char(sysdate,'cc') as century from dual);
SELECT "century" FROM (select to_char(sysdate,'cc') as "century" from dual); SELECT century FROM (select to_char(sysdate,'cc') as century from dual);
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