OceanBase SET VARIABLE
描述
该语句用来设置用户自定义和系统定义的 session 变量。
格式
SET var1_name = var1_value, var2_name = var2_value, ...;参数解释
|
参数 |
描述 |
|---|---|
|
var1_name |
指定要设置的变量，可以是用户自定义的变量，也可以是系统变量。如果要设置多个变量，中间用 , 分隔。 |
示例
OceanBase(TEST@TEST)>set @a = 1, @b = 2, @c = 3;
Query OK, 0 rows affected (0.02 sec)
OceanBase(TEST@TEST)>set @@tx_isolation = 'read-what';
ORA-00600: internal error code, arguments: -5145, Variable 'tx_isolation' can't be set to the value of 'read-what'
OceanBase(TEST@TEST)>set @@tx_isolation = 'read-committed';
Query OK, 0 rows affected (0.01 sec)
OceanBase(TEST@TEST)>select @a,@b,@c,@@tx_isolation from dual;
+------+------+------+----------------+
| @A | @B | @C | @@TX_ISOLATION |
+------+------+------+----------------+
| 1 | 2 | 3 | read-committed |
+------+------+------+----------------+
1 row in set (0.01 sec)