创建一个尚不存在的表，并在与MySQL相同的查询中插入一条记录
为此使用CREATETABLEIFNOTEXISTS，如以下语法所示-
create table if not exists yourTableName ( yourColumnName1 dataType, yourColumnName2 dataType, yourColumnName3 dataType, . . N ) as select yourValue1 as yourColumnName1 , yourValue2 as yourColumnName2 , yourValue3 as yourColumnName3,.............................N;
我们首先创建一个表，如果该表尚不存在，则插入值-
create table if not exists DemoTable ( id int, FirstName varchar(20), LastName varchar(20) ) as select 100 as id, 'John' as FirstName , 'Smith' as LastName; Records: 1 Duplicates: 0 Warnings: 0
现在让我们显示记录-
select *from DemoTable;
这将产生以下输出-
+------+-----------+----------+ | id | FirstName | LastName | +------+-----------+----------+ | 100 | John | Smith | +------+-----------+----------+ 1 row in set (0.00 sec)