Remove leading zeros using HiveQL

淺唱寂寞╮ 提交于 2019-12-24 02:45:25

问题


I have a string value in which i might have leading zero's, so i want to remove all leading zeros.

For example:

accNumber = "000340" ---> "340"

Any UDF is available in Hive? can we use regexp_extract for this?


回答1:


Yes, just use REGEXP_REPLACE().

SELECT some_string,
   REGEXP_REPLACE(some_string, "^0+", '') stripped_string
FROM db.tbl

(fixed simple typo with comma)



来源:https://stackoverflow.com/questions/38146780/remove-leading-zeros-using-hiveql

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