![ADD and DROP a column in the ALTER TABLE in a snowflake. | by Amulya Kumar panda | Oct, 2023 | Medium ADD and DROP a column in the ALTER TABLE in a snowflake. | by Amulya Kumar panda | Oct, 2023 | Medium](https://miro.medium.com/v2/resize:fit:1400/1*qzmZ8PDB5B5m9-cUMvbbqA.png)
ADD and DROP a column in the ALTER TABLE in a snowflake. | by Amulya Kumar panda | Oct, 2023 | Medium
ALTER TABLE ADD COLUMN IF NOT EXISTS returns error when column already exists · Issue #4565 · ClickHouse/ClickHouse · GitHub
![Bug] (FE) : show alter command return incorrect alter job progress · Issue #11143 · apache/doris · GitHub Bug] (FE) : show alter command return incorrect alter job progress · Issue #11143 · apache/doris · GitHub](https://user-images.githubusercontent.com/43750022/180603727-731c3368-22b0-4570-9cd8-5ce849d630fe.png)
Bug] (FE) : show alter command return incorrect alter job progress · Issue #11143 · apache/doris · GitHub
![sql - Alter Table Add Column and update the new Column in the same conditional IF statement - Stack Overflow sql - Alter Table Add Column and update the new Column in the same conditional IF statement - Stack Overflow](https://i.stack.imgur.com/Yh0iD.png)