hive中將string數(shù)據(jù)轉(zhuǎn)為bigint的操作

使用 CAST 函數(shù)將 STRING 轉(zhuǎn)為 BIGINT:

SELECT CAST('00321' AS BIGINT) FROM table;

As a BIGINT it will show on the screen and in delimited text files as 321.

參考：Hive - Converting a string to bigint

補(bǔ)充知識(shí)：hive中bigint和varchar字段做關(guān)聯(lián)，關(guān)聯(lián)數(shù)據(jù)錯(cuò)誤的解決方法

把bigint和varchar都隱式轉(zhuǎn)換成String類(lèi)型的就可以關(guān)聯(lián)出正確的結(jié)果了

cast(t1.PARTY_NUM as string)=cast(t12.customerId as string)

以上這篇hive中將string數(shù)據(jù)轉(zhuǎn)為bigint的操作就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。