如何在MySQL中查找列是否为auto_increment？
要查找列在MySQL中是否为auto_increment，可以使用以下语法-
select COLUMN_NAME from information_schema.columns where TABLE_SCHEMA='yourDatabaseName' and TABLE_NAME='yourTableName' and EXTRA like '%auto_increment%';
让我们首先创建一个表。在这里，ClientId设置为AUTO_INCREMENT-
mysql> create table autoIncrementTableDemo -> ( -> ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> ClientName varchar(20), -> ClientAge int, -> ClientAddress varchar(100), -> ClientCountryName varchar(100) -> );
现在，让我们查找是否有任何列是auto_increment-
mysql> select COLUMN_NAME from information_schema.columns where TABLE_SCHEMA='test' and TABLE_NAME='autoIncrementTableDemo' and EXTRA like '%auto_increment%';
以下是给出列即auto_increment的输出-
+-------------+ | COLUMN_NAME | +-------------+ | ClientId | +-------------+ 1 row in set (0.00 sec)