当我尝试使用雪花存储过程执行更改命令时给出错误？

Question

我使用以下代码创建了存储过程，但出现错误。

CREATE OR REPLACE PROCEDURE testproc()
returns string not null
language javascript
as
$$
var sql_textA = "ALTER SESSION SET TIMEZONE = 'UTC'" ; 
var stmt = snowflake.createStatement({ sqlText: sql_textA}); 
var rs = stmt.execute();
var sql_textb="SELECT CURRENT_TIMESTAMP;"
var stmt = snowflake.createStatement({ sqlText: sql_textA}); 
var rs = stmt.execute();

return "succes";
$$
;

call testproc() 

出现如下错误 "存储过程执行错误：不支持的语句类型 'ALTER_SESSION'。在 Statement.execute 第 4 行位置"

Answer 1

您需要创建具有 CALLER 权限的过程：

CREATE OR REPLACE PROCEDURE testproc()
returns string not null
language javascript
execute as caller
as
$$
var sql_textA = "ALTER SESSION SET TIMEZONE = 'UTC'" ; 
var stmt = snowflake.createStatement({ sqlText: sql_textA}); 
var rs = stmt.execute();
var sql_textb="SELECT CURRENT_TIMESTAMP;"
var stmt = snowflake.createStatement({ sqlText: sql_textb}); 
var rs = stmt.execute();

rs.next();

return rs.getColumnValue(1);
$$
;

call testproc(); 

https://docs.snowflake.com/en/sql-reference/stored-procedures-rights.html#choosing-between-owner-s-rights-and-caller-s-rights