Question

我的过程是将数据拖放到天蓝色blob上的csv文件中。 SQL代码可以正常运行，但是在实施到过程中时出现以下错误：

JavaScript compilation error: Uncaught SyntaxError: Invalid or unexpected token in TST_30102020 at ' sqlText:'COPY INTO @storage/folder/file_1.csv' position 19

我找不到破坏整个事物的奇数符号。

过程如下：

CREATE or REPLACE PROCEDURE TST_30102020()
RETURNS VARCHAR
LANGUAGE JAVASCRIPT
EXECUTE AS CALLER
AS
$$
var stmt = snowflake.createStatement({
           sqlText:'COPY INTO @storage/folder/file_1.csv

                     FROM (SELECT t1.ATTR,t1.ATTR, t2.ATTR, t2.ATTR, t1.ATTR, t1.MIASTO, t1.ATTR, t1.ATTR,
                                    t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR,
                                    t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.KONCESJA_A, t1.ATTR, t1.ATTR
                           FROM t1

                           LEFT JOIN (SELECT * FROM table WHERE ATTR >= '2020-09-01') AS t2
                                  ON t1.ATTR= t2.ATTR AND t1.ATTR= t2.ATTR

                           LEFT JOIN (SELECT * FROM table WHERE ATTR>= '2020-09-01') AS t3
                                  ON t2.ATTR= t3.ATTR
                                  AND t2.ATTR= t3.ATTR
                                  AND t2.ATTR= t3.ATTR

                           WHERE t2.ATTR> 0
                           ORDER BY t2.ATTR, t1.ATTR)

                    FILE_FORMAT = (TYPE = 'CSV')
                    OVERWRITE = TRUE
                    SINGLE = TRUE 
                    MAX_FILE_SIZE = 170000000'});
    
try {
    stmt.execute();
    return "Succeeded.";
  }

catch (err) {
    return "Failed: " + err;
  }

$$;

Answer 1

问题是您正在用单引号打开JavaScript字符串，并且您的字符串包含单引号。这也是多行文字。好消息是JavaScript提供了一种解决此问题的好方法。将字符串的开头和结尾的引号从单引号更改为反引号。反勾号位于美国键盘的左上方，在tilda〜字符下方。

使用倒勾将允许多行字符串，包括SQL语句。它还可以通过在任何JavaScript变量之前添加一个美元符号并将其用花括号括起来来进行令牌替换。换句话说，如果您有一个名为myVariable的变量，则可以通过在字符串中的任意位置放置$ {myVariable}来替换该值，前提是您使用反斜杠打开和关闭了字符串文字。

CREATE or REPLACE PROCEDURE TST_30102020()
RETURNS VARCHAR
LANGUAGE JAVASCRIPT
EXECUTE AS CALLER
AS
$$
var stmt = snowflake.createStatement({
           sqlText:`COPY INTO @storage/folder/file_1.csv

                     FROM (SELECT t1.ATTR,t1.ATTR, t2.ATTR, t2.ATTR, t1.ATTR, t1.MIASTO, t1.ATTR, t1.ATTR,
                                    t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR,
                                    t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.ATTR, t1.KONCESJA_A, t1.ATTR, t1.ATTR
                           FROM t1

                           LEFT JOIN (SELECT * FROM table WHERE ATTR >= '2020-09-01') AS t2
                                  ON t1.ATTR= t2.ATTR AND t1.ATTR= t2.ATTR

                           LEFT JOIN (SELECT * FROM table WHERE ATTR>= '2020-09-01') AS t3
                                  ON t2.ATTR= t3.ATTR
                                  AND t2.ATTR= t3.ATTR
                                  AND t2.ATTR= t3.ATTR

                           WHERE t2.ATTR> 0
                           ORDER BY t2.ATTR, t1.ATTR)

                    FILE_FORMAT = (TYPE = 'CSV')
                    OVERWRITE = TRUE
                    SINGLE = TRUE 
                    MAX_FILE_SIZE = 170000000`});
    
try {
    stmt.execute();
    return "Succeeded.";
  }

catch (err) {
    return "Failed: " + err;
  }

$$;

最后的提示...在Stackoverflow上检查代码样本的颜色编码。您会注意到，您提供的那个遇到日期时会更改颜色，因为那里有一个单引号字符。即使在修改后的代码中用反勾号打开和关闭报价时，它仍保持相同的颜色（仅对其进行了更改）。

雪花过程错误（将数据放入Blob存储中）

1 个答案: