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UPDATE S SET grade=85 WHERE SN=’王二’AND CN=’化学’ UPDATE S SET grade=’85’ WHERE SN=’王二’AND CN=’化学’ UPDATE grade=85 WHERE SN=’王二’AND CN=’化学’ UPDATE grade=’85’WHERE SN=’王二’AND CN=’化学’
>84 0r<100 Between 85 with 100 IN(85,100) >=85 and<100
>=60 or<80 >=60 and<80 >60 and=<80 >60 or=<80
>84 or<100 Between 85 with 100 IN(85,100) >=85 and <100
>69 Or<80 Between 70 With 80 >=70 And <80 In(70,79)
在FROM予句后加入:WHERE AVG(*)>85 在FROM予句后加入:WHERE AVG(Score)>85 在GROUP BY子句前加入:HAVING AVG(Score)>85 在GROUP BY子句中加入:HAVING AVG(Score)>85
>69 or <80 Between 70 with 80 >=70 and <80 IN(70,79)
80(不含)~60分 85(不含)~60分 100~80分 100~85分
>69 or<80 Between 70 with 80 >=70 and<80 IN (70,79)
85,85,85 87,85,86 87,85,85 87,85,90
>69or<80 Between 70 with 80 >=70and<80 IN(70,79)
100~80分 100~85分 80(含)~60分 85(不含)~60分
UPDATE S SET grade=85 WHERE SN=’王二’AND CN=’化学’ UPDATE S SET grade=’85’ WHERE SN=’王二’AND CN=’化学’ UPDATE grade=85 WHERE SN=’王二’AND CN=’化学’ UPDATE grade=’85’WHERE SN=’王二’AND CN=’化学’
>84 or<100 Between 85 with 100 IN(85,100) >=85 and<100
>69or<80 Between 70 with 80 >=70and<80 IN(70,79)
>84 or<100 Between 85 with 100 IN(85,100) >=85 and<100
>=60 or <80 >=60 and <80 >60 and =<80 >60 or =<80
>60 or <80 >=60 And <80 >60 and <80 IN(60,80)
在FROM予句后加入:WHERE AVG(*)>85 在FROM予句后加入:WHERE AVG(Score)>85 在GROUP BY子句前加入:HAVING AVG(Score)>85 在GROUP BY子句中加入:HAVING AVG(Score)>85