mysql - 无法在 mysql 中使用“as”为列提供别名

Question

询问：

Select batch as Senior_PM_Batch from profile where designation = 'project manager' and batch <= ALL(select batch from profile where designation = 'project manager');

查询给出了准确的结果，但无法将列重命名batch为Senior_PM_Batch.

结果Batch仅显示列名。

Answer 1

尝试

Select batch as `Senior_PM_Batch` from profile where designation = 'project manager' and batch <= ALL(select batch from profile where designation = 'project manager');