我的数据库中有一个表,在我的表中我有4列 NAME_1 NAME_2 LASTNAME_1 LASTNAME_2
好了,我现在添加一个列“FULL NAME”,我希望连接NAME_1 NAME_ 2 LASTNAME_1和LASTNAME_2并插入FULL_NAME。
我该怎么办?
NAME_1 NAME_2 LASTNAME_1 LASTNAME_2
-------------------------------------------------
ALISON NULL LAWRENCE NULL
CARLOS NULL LOPEZ RECINOS
MEL ANDREA CHEW PHELPS
NAME1 NAME2 LASTNAME1 LASTNAME2 FULL_NAME
----------------------------------------------------------------------
ALISON NULL LAWRENCE NULL ALISON LAWRENCE
CARLOS NULL LOPEZ RECINOS CARLOS LOPEZ RECINOS
MEL ANDREA CHEW PHELPS MEL ANDREA CHEW PHELPS
答案 0 :(得分:2)
您可以使用ISNULL和连接运算符+并设置值
UPDATE Table1
SET FULL_NAME = ISNULL(NAME_1,'') +
ISNULL(NAME_2,'') +
ISNULL(LASTNAME_1,'') +
ISNULL(LASTNAME_2,'')