雪花存储过程复制到临时表

Question

问题与 Snowflake 和 Snowsql 有关。也就是说，我正在尝试在存储过程中创建一个临时表，然后从 azure blob 存储“复制到”这个临时表。 我手动执行了雪 sql 语句，它们工作正常。 声明一：CREATE TEMPORARY TABLE DB.TABLES.LINE_DETAILS_INCREMENTAL LIKE DB.TABLES.LINE_DETAILS;

声明 2：

COPY INTO DB.TABLES.LINE_DETAILS_INCREMENTAL FROM (SELECT * FROM @DB.BASE.Azure/S/LINE_DETAILS_INCREMENTAL )
force = false file_format = (type = csv field_delimiter = '|' encoding = 'Windows 1252' skip_header = 0);

但是当我将它封装到一个存储过程中并尝试运行它时，它会给出错误：- “JavaScript 编译错误：未捕获的 SyntaxError：SP_DELETE_LINE_DETAILS 中的意外标识符，位于 'var insert_clause = 'COPY INTO DB.TABLES.LINE_DETAILS_INCREMENTAL FROM (SELECT * FROM @Feeds_DB.BASE.Azure/S/LINE_DETAILS_INCREMENTAL) force = true file_format = (type = csv field_delimiter = '|' encoding = 'Windows1252' skip_header = 0) On_error = continue;'' 位置 288"。 存储过程的代码是：-

CREATE or replace procedure  "DB"."TABLES"."SP_DELETE_INSERT_3DAYS_INTO_LINE_DETAILS"()
returns varchar(1000)
language javascript
as
$$
try{
var create_clause = 'CREATE TEMPORARY TABLE DB.TABLES.LINE_DETAILS_INCREMENTAL LIKE DB.TABLES.PS_TRANSACTION_LINE_DETAILS;'
        var create_stmt  = snowflake.createStatement({sqlText: create_clause});   
        var create_res = create_stmt.execute();
        
        var insert_clause = 'COPY INTO DB.TABLES.LINE_DETAILS_INCREMENTAL FROM (SELECT * FROM @Tableau_Feeds_DB.BASE_TABLES.JDAStagingAzure/POS/PS_TRANSACTION_LINE_DETAILS_INCREMENTAL ) force = true file_format = (type = csv field_delimiter = '|' encoding = 'Windows1252' skip_header = 0) On_error = continue;'
        var insert_stmt = snowflake.createStatement({sqlText: insert_clause});  
        var insert_res = insert_stmt.execute();
        var select_clause = 'select distinct TO_CHAR(TO_DATE(CREATE_DATE)) as CREATE_DATE from DB.TABLES.LINE_DETAILS_INCREMENTAL order by CREATE_DATE';
        var select_stmt  = snowflake.createStatement({sqlText: select_clause});
        var select_res   = select_stmt.execute();
 while (select_res.next()) 
            {
            date_ip = select_res.getColumnValue(1);
            var desc_user_sql  = `delete from DB.TABLES.LINE_DETAILS where TO_DATE(CREATE_DATE) = :1;`
            var desc_user_stmt  = snowflake.createStatement({sqlText: desc_user_sql, binds: [date_ip]});

            var desc_user_sql2  = `INSERT INTO DB.TABLES.PS_TRANSACTION_LINE_DETAILS select * from DB.TABLES.PS_TRANSACTION_LINE_DETAILS_INCREMENTAL where TO_DATE(CREATE_DATE) = :1;`
            var desc_user_stmt2  = snowflake.createStatement({sqlText: desc_user_sql2, binds: [date_ip]});

            try{
                       desc_user_stmt.execute();
                       desc_user_stmt2.execute();
                  }
               catch(err)
                  {
                   return "Error inserting records: " +err;
                  }              
            }
            return "Data has been insert in success!";
        }
        
        catch(err){
               return "Error whileselecting Roles : " +err;
        }
return 0;
$$

Answer 1

尝试如下更改单引号

var insert_clause = `COPY INTO DB.TABLES.LINE_DETAILS_INCREMENTAL FROM (SELECT * FROM @Tableau_Feeds_DB.BASE_TABLES.JDAStagingAzure/POS/PS_TRANSACTION_LINE_DETAILS_INCREMENTAL ) force = true file_format = (type = csv field_delimiter = '|' encoding = 'Windows1252' skip_header = 0) On_error = continue;`

https://docs.snowflake.com/en/sql-reference/stored-procedures-usage.html#line-continuation

Answer 2

我认为你在这里遇到的问题是你使用单引号来开始/结束你的字符串，以及字符串本身。

例如，您的字符串中有以下短语：

encoding = 'Windows1252'

我建议用反斜杠转义额外的引号，如下所示：

encoding = \'Windows1252\'

对所有额外的引号都这样做，你应该没问题。

如果您之后仍然遇到问题，请告诉我！