一个表 [tbuser]
ID NAME INFO
1 aa11 t1
2 aa22 t1
3 bb33 t2
4 bb44 t2
5 cc55 t3
6 cc66 t3
7 cs2 b
8 ct5 b
9 xw6 b
10 12sre b问题:
找出所有以aa bb cc 开头的信息
例如
ID NAME INFO
1 aa11 t1
2 aa22 t1
3 bb33 t2
4 bb44 t2
......请教各位大神如何写SQL代码。
目前只能找出单个字段的数据,例如以aa开头的代码select t.* from tbuser t where substr(t.name,0,3) like 'aa%';
ID NAME INFO
1 aa11 t1
2 aa22 t1
3 bb33 t2
4 bb44 t2
5 cc55 t3
6 cc66 t3
7 cs2 b
8 ct5 b
9 xw6 b
10 12sre b问题:
找出所有以aa bb cc 开头的信息
例如
ID NAME INFO
1 aa11 t1
2 aa22 t1
3 bb33 t2
4 bb44 t2
......请教各位大神如何写SQL代码。
目前只能找出单个字段的数据,例如以aa开头的代码select t.* from tbuser t where substr(t.name,0,3) like 'aa%';
SELECT 1 ID,'aa11' NAME,'t1' INFO FROM dual
UNION ALL
SELECT 2,'aa22', 't1' FROM dual
UNION ALL
SELECT 3, 'bb33', 't2' FROM dual
UNION ALL
SELECT 4, 'bb44', 't2' FROM dual
UNION ALL
SELECT 5, 'cc55', 't3' FROM dual
UNION ALL
SELECT 6, 'cc66', 't3' FROM dual
UNION ALL
SELECT 7, 'cs2', 'b' FROM dual
UNION ALL
SELECT 8, 'ct5', 'b' FROM dual
UNION ALL
SELECT 9, 'xw6', 'b' FROM dual
UNION ALL
SELECT 10, '12sre', 'b' FROM dual
)SELECT * FROM t WHERE NAME LIKE 'aa%' OR NAME LIKE 'bb%' OR NAME LIKE 'cc%' ORDER BY id;ID NAME INFO
1 aa11 t1
2 aa22 t1
3 bb33 t2
4 bb44 t2
5 cc55 t3
6 cc66 t3
select t.*
from tbuser t
where substr(t.name,0,2) in ('aa','bb','cc');
from tbuser t
where lengthb(t.name)>2 and substr(t.name,0,2) in ('aa','bb','cc');
我想用循环读查出来。怎么做?
select t.*
from tbuser t
where substr(t.name,0,1)=substr(t.name,1,2);
select t.*
from tbuser t
where upper(substr(t.name,0,1))=upper(substr(t.name,1,2));