右补0:select RPAD(id,8,‘0’) as num from tmp;
左补0:select LPAD(id,8,‘0’) as num from tmp;
参数 :
id:为字段名称
8:为补全的位数
0:代表补的参数0
转载自:https://www.cnblogs.com/azhqiang/p/6972947.html
右补0:select RPAD(id,8,‘0’) as num from tmp;
左补0:select LPAD(id,8,‘0’) as num from tmp;
参数 :
id:为字段名称
8:为补全的位数
0:代表补的参数0
转载自:https://www.cnblogs.com/azhqiang/p/6972947.html
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