建立一个表“tabletest”，有两个字段column1，column2，column1的类型为整形，column2的类型为varchar(20)，不允许为空，然后再删除表中的column2字段。

Writing practice 2 (Match) Match the English terms and expressions in Column A with their Chinese equivalents in Column B.

第2单元练习(副本) Match the English words in Column A with the Chinese meaning in Column B.

以下函数计算结果正确的是() A: ow(a3)=2 B: ow(a4)=2 C: column(a4)=1 D: column(d4)=4

A column that fails due to normal stress, is called ( ) A: short column B: long column C: weak column D: medium column

Which one of the followings columns has the highest column efficiency? A: packed column B: WCOT column C: SCOT column D: PLOT column

Identify the column where the formatting rules have not been applied. A: Date column B: Ref column C: Item $ column D: Bal $ column

A column in journals and ledger accounts used to cross reference journal and ledger entries is the__________. A: account balance column B: debit column C: posting reference column D: credit column E: description column

Match the English in Column A with their meanings Match the English in Column A with their meanings in Column B.

What is not included in the three column theory ( ). ____ A: Ant. Column B: Mid. Column C: Upper column D: Post. Colum