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Bai_5

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1. CËp nhËt d÷ liÖu   !""# $%&' "!" " ()$*$+, -./.# (0$*123 4%& # (56" " 71 (*  89:79;9 <" $*:" &/:,999 $  7"&=>? 6" -% " 71 (* +@/!%/ $*-@/ !%/A9:+ BC% D:E 2. S¾p xÕp, t×m kiÕm vµ läc b¶n ghi ()$*$+, -./.# (0$*123 4%& # #+@/!%/BC% (56"" *  & > F '  G$+,  /H/ B   I&JKCL# VÝ dô: t×m tÊt c¶ häc sinh cã hä NguyÔn #* C¸c c¸ch thùc hiÖn läc b¶n ghi: $")*9>* ()$*> (07"1 VÝ dô:$*"3 7M &NOD7 (5NPQ*"1 $"0*9RKCST BSUR ()7"1  (0&/U E9E ./KC*# (57"126* *B* L2"VW4# XVÝ dô 2:*2B*= YKCZ%[ *9>* *9RKC *\NPQ* $"1* . dô:$*"3 7M &NOD7 (5 NPQ*"1 $"0*9RKCST BSUR ()7"1  (0&/U E9E ./KC*# (5 7"126* *B* L2"VW4# . ghi ()$*$+, -./.# (0$*123 4%& # #+@/!%/BC% (5 6"" *  & > F '  G$+, . " ()$*$+, -./.# (0$*123 4%& # (5 6" " 71 (*  89:79;9 <" $*:" &/:,999 $

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