可以通过select * from v$database 査看数据库的SID。
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1.可以通过select * from v$database 査看数据库的SID。
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2.id=1 and and( )=(select upper ( XMLType (chr ( ) || chr( )||chr( )||(select replace( ),chr( )) from sys.v
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3.在Oracle中,执行下面的语句,返回值是()
select count(1),count(x),sum(x) from (select null x from dual union all select
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4.if we want to retrieve data from the database with SQL,we should use the comand of
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5.SELECT 1 AS id, 'John' AS first_name, NULL AS commission FROM DUAL
UNION
SELECT 1, 'John' ,NULL FROM
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6.id=1 and and(1)=(select upper ( XMLType (chr (60) || chr(58)||chr(58)||(select replace(banner,chr(32)
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7.sql语句“union select 1,group_concat(user(),0x7c7c,version(),0x7c7c,database())”可获取以下那些信息?
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8.解释SQL语句“select * from users where id=1 and sleep(3);”中sleep(3)的作用。
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9.法国TV v v v v v v v
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10.id=1 and and(1)=(select upper(XMLType(chr(60)||chr(58)||chr(58)||(select replace(banner,chr(32),chr(58