怎么将decimal型的转换为char型的数据前面的0去掉
解决方案
测试1:
values TRIM(REPLACE(strip(replace(char(12.23), '0.', '#'),B,'0'),'#','0.'));
RESULT:'12.23'
测试2:
values TRIM(REPLACE(strip(replace(char(1200.23), '0.', '#'),B,'0'),'#','0.'));
RESULT:'1200.23'
测试3:
values TRIM(REPLACE(strip(replace(char(0.23), '0.', '#'),B,'0'),'#','0.'));
RESULT:'0.23'
结论:此方法OK!
给个例子
db2 "drop table test"
db2 "create table test (c1 decimal(8,3))"
db2 "insert into test values (0.11),(1.01), (10.110), (101.01),1001.001)"
db2 "select * from test"
db2 -x "select c1,rtrim(char(bigint(c1)))||'.'||translate(rtrim(translate((right(char(c1),4)),' ','0')),'0',' ') from test"
固定保留小数点几位
select cast(abc as decimal(10,3))
from 表名