通过 UDF 表插入到表中，不能从存储过程中工作

Question

My stored procedure should insert data into table via UDF.

The string I generate is correct when I run it as SQL statement, but when I execute it through the stored procedure, it throws a syntax error.

This is the SQL statement:

insert into dbname.public.TBLPROVIDER 
    select * 
    from table(f_TBLPROVIDER('dbname',cast('20211031233226' as bigint)));

Here is the code which is failing from the stored procedure

var sql_tbl_populate  = "insert into " + S_DB_NAME + ".public." + TBL_NAME + " "
sql_tbl_populate += "select * from table(f_" + TBL_NAME +"('"+ S_DB_NAME + "',cast('" + S_TIMESTAMP + "' as bigint)));"
stmt_sql_tbl_populate = snowflake.createStatement({sqlText: sql_tbl_populate} );
stmt_sql_tbl_populate.execute();

The error is

Execution error in stored procedure SP_POPULATE_TRGT_TABLES: SQL compilation error: syntax error line 1 at position 105 unexpected 'dbname'.
At Statement.execute, line 21 position 23

Answer 1

I am able to locate your query and find out the DDL of your SP.

The issue lies on the below query when you tried to insert into the tbl_log table:

var sqld = "insert into log_table values ('" + sql_tbl_populate + "')";

The actually failed query was:

insert into log_table values ('insert into dbname.public.tablename select * from table(f_TBLPROVIDER('dbname',cast('20211031233226' as bigint)));')

Because you had single quotes around the variable "sql_tbl_populate", which already had the single quote for the parameters in the function f_TBLPROVIDER.

You need to escape the single quotes inside "sql_tbl_populate" when you build your INSERT statement in variable "sqld".