该表被两次指定为INSERT的目标和单独的数据源 [英] table is specified twice both as a target for INSERT and as separate source of data

问题描述

我进行了此查询，但就像标题中一样给了我错误

I made this query but it gave me error just like in the title

INSERT INTO data_waktu_vaksinasi (id_binatang, id_vaksin, tanggal_vaksin, status_vaksin) VALUES 
    (1, 1, (SELECT DATE_ADD(max(tanggal_vaksin), INTERVAL 1 YEAR)) FROM data_waktu_vaksinasi, 'belum')

推荐答案

MySQL 确实允许将同一表用于inserts的源和目标.您只需要使用正确的语法即可:

MySQL does allow the same table to be used for the source and target for inserts. You just need to use the correct syntax:

INSERT INTO data_waktu_vaksinasi (id_binatang, id_vaksin, tanggal_vaksin, status_vaksin) 
     SELECT 1, 1, DATE_ADD(max(tanggal_vaksin), INTERVAL 1 YEAR), 'belum'
     FROM data_waktu_vaksinasi;

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