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数据库上机实验报?- 百度文库

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.

/*Լ,cno,ձʾcourse*/ );

1createtables (

cnovarchar(3),/*䳤ַ,2ַַᲹո*/

snamevarchar(20), statusint,

cityvarchar(20),

constraintpk_snoprimarykey(sno),/*ԼΪpk_sno*/ );

createtablep

.

(

pnovarchar(3),

pnamevarchar(20),

colorvarchar(3), weightint,

constraintpk_pnoprimarykey(pno),/*Լpk_pno*/ );

createtablej (

jnovarchar(3),

jnamevarchar(20),

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