單項(xiàng)選擇題向表中插入一個(gè)和已有紀(jì)錄關(guān)鍵字段一樣的紀(jì)錄的命令為()

A.insert into
B.replace into
C.insert from
D.replace from


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你可能感興趣的試題

1.單項(xiàng)選擇題顯示所有錯(cuò)誤的命令為()

A.show errors
B.show databases
C.show variables
D.show warnings

2.單項(xiàng)選擇題向表中插入一個(gè)新行的紀(jì)錄的命令為()

A.insert into
B.replace into
C.insert from
D.replace from

3.單項(xiàng)選擇題修改表的命令為()

A.Create table
B.rename table
C.alter table
D.drop table

4.多項(xiàng)選擇題數(shù)據(jù)庫(kù)xscj中有xs表,下列()語(yǔ)句可以執(zhí)行。

A.use xscj
B.use xs
C.rename table xs to xs1
D.rename database xscj to xscj1