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DepartmentHead£¨ÏµÖ÷ÈΣ© ¸Ã±í×î¸ßÂú×ãµÚ£¨£©·¶Ê½¡££¨Ñ¡ÔñÒ»Ï a) Ò» b) ¶þ c) Èý d) ²»Âú×ãÈκη¶Ê½£»

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a) b) c) d) select distinct(cid) from orders o1 where o1.pid in ('p01','p02')

select distinct(cid) from orders o1 where o1.pid='p01' and o1.pid='p02'

select distinct(cid) from orders o1 where pid='p01' and exists (select * from orders where pid ='p02' and cid=o1.cid)

select distinct(cid) from orders o1,orders o2 where o1.pid='p01' and o2.pid='p02'

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c) d) Ö÷¼üÒ»¶¨ÊǾ۽¹Ë÷Òý¡£

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sp_tables a)

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sp_renametable d)

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a) Ò»¸öÊÂÎñÖеÄËùÓÐÃüÁî×÷Ϊһ¸öÕûÌåÌá½»»ò»Ø¹ö¡£ b) Èç¹ûÁ½¸ö²¢·¢ÊÂÎñҪͬʱÐÞ¸Äͬһ¸ö±í£¬ÓпÉÄܲúÉúËÀËø¡£ c) Sql serverĬÈϽ«Ã¿Ìõµ¥¶ÀµÄT-SQLÓï¾äÊÓΪһ¸öÊÂÎñ¡£ d) ÊÂÎñ±ØÐëʹÓÃbegin transactionÀ´Ã÷È·Ö¸¶¨ÊÂÎñµÄ¿ªÊ¼¡£

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select sname from student where studentID in (select studentID from score where a)

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select sname from student where studentID = (select studentID from score where b)

score>60)

select sname from student where studentID not in (select studentID from score c)

where score<=60)

select sname from student where exists (select studentID from score where d)

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SQL ServerÊý¾Ý¿âÓÐ2ÖֵǼÈÏÖ¤·½Ê½¡£ÆäÖÐÔÚ£¨£©·½Ê½Ï£¬ÐèÒª¿Í»§¶ËÓ¦ÓóÌÐòÁ¬½ÓʱÌṩµÇ¼ʱÐèÒªµÄÓû§±êʶºÍÃÜÂë¡£ a) WindowsÉí·ÝÑéÖ¤¡£ b) ÒÔ³¬¼¶Óû§Éí·ÝµÇ¼ʱ¡£ c) SQL Server Éí·ÝÑéÖ¤¡£ d) ÒÔϵͳÉí·ÝµÇ¼ʱ¡£ SQL ServerÊý¾Ý¿âÖУ¬ÏÂÁв»ÊôÓÚT-SQLÊÂÎñ¹ÜÀíÓï¾äµÄÊÇ£¨£©¡££¨Ñ¡ÔñÒ»Ï a) BEGIN TRANSACTION£» b) END TRANSACTION£» c) COMMIT TRANSACTION£» d) ROLLBACK TRANSACTION£» Òª½¨Á¢Ò»¸öÔ¼Êø£¬±£Ö¤Óû§±í£¨user£©ÖÐÄêÁ䣨age£©±ØÐëÔÚ16ËêÒÔÉÏ£¬ÏÂÃæÓï¾äÕýÈ·µÄÊÇ£¨£©¡££¨Ñ¡ÔñÒ»Ï

Alter table user add constraint ck_age CHECK(age>16) a)

b) Alter table user add constraint df_age DEFAULT(16) for age¡£ c) Alter table user add constraint uq_age UNIQUE(age>16)¡£ d) Alter table user add constraint df_age DEFAULT(age>16)¡£ ÒøÐÐϵͳÖÐÓÐÕÊ»§±íºÍ½»Ò×±í£¬ÕÊ»§±íÖд洢Á˸÷´æ¿îÈ˵ÄÕÊ»§Óà¶î£¬½»Ò×±íÖд洢Á˸÷´æ¿îÈËÿ´ÎµÄ´æÈ¡¿î½ð¶î¡£Îª±£Ö¤´æ¿îÈËÿ½øÐÐÒ»´Î´æ¡¢È¡¿î½»Ò×£¬¶¼ÕýÈ·µÄ¸üÐÂÁ˸ôæ¿îÈ˵ÄÕÊ»§Óà¶î£¬ÒÔÏÂÑ¡ÏîÖÐÕýÈ·µÄ×ö·¨ÊÇ£¨£©¡££¨Ñ¡ÔñÒ»Ï a) ÔÚÕÊ»§±íÉÏ´´½¨insert´¥·¢Æ÷¡£ b) ÔÚ½»Ò×±íÉÏ´´½¨insert´¥·¢Æ÷¡£ c) ÔÚÕÊ»§±íÉÏ´´½¨¼ì²éÔ¼Êø¡£ d) ÔÚ½»Ò×±íÉÏ´´½¨¼ì²éÔ¼Êø¡£ SQL ServerÊý¾Ý¿âÖУ¬°üº¬Á½¸ö±í:Order¶©µ¥±í£¬ Item¶©µ¥×ÓÏîÄ¿±í¡£ µ±Ò»¸öж¨µ¥±»¼ÓÈëʱ£¬Êý¾ÝÒª·Ö±ð±£´æµ½OrderºÍItem±íÖУ¬Òª±£Ö¤Êý¾ÝÍêÕûÐÔ£¬¿ÉÒÔʹÓÃÒÔÏ£¨£©Óï¾ä¡££¨Ñ¡ÔñÒ»Ï

BEGIN TRANSACTION a)

INSERT INTO Order VALUES (´Ë´¦Ê¡ÂÔ) INSERT INTO Item VALUES (´Ë´¦Ê¡ÂÔ) END TRANSACTION

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BEGIN TRANSACTION

INSERT INTO Order VALUES (´Ë´¦Ê¡ÂÔ) INSERT INTO Item VALUES (´Ë´¦Ê¡ÂÔ) IF (@@Error = 0)

COMMIT TRANSACTION ELSE

ROLLBACK TRANSACTION BEGIN TRANSACTION

INSERT INTO Order VALUES (´Ë´¦Ê¡ÂÔ) IF (@@Error = 0)

INSERT INTO Item VALUES (´Ë´¦Ê¡ÂÔ) IF (@@Error = 0)

COMMIT TRANSACTION ELSE

ROLLBACK TRANSACTION ELSE

ROLLBACK TRANSACTION BEGIN TRANSACTION

INSERT INTO Order VALUES (´Ë´¦Ê¡ÂÔ) INSERT INTO Item VALUES (´Ë´¦Ê¡ÂÔ) IF (@@Error <> 0)

ROLLBACK TRANSACTION

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select * from student where exists (select studentid from score where score<60) ¿É·µ»Ø£¨£©Ìõ¼Ç¼¡££¨Ñ¡ÔñÒ»Ï

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