Teradata 问题。那么目标表将从源表中获取CustomerID和CustomerName，而最后一个字段SQL\u RESULT将从存储在源表中的SQL语句中获取结果？这意味着源表中的SQL Query字段中保存的SQL语句将只生成一条带有单个字段的记录，对吗？表中有
Teradata 问题。那么目标表将从源表中获取CustomerID和CustomerName，而最后一个字段SQL\u RESULT将从存储在源表中的SQL语句中获取结果？这意味着源表中的SQL Query字段中保存的SQL语句将只生成一条带有单个字段的记录，对吗？表中有,teradata,Teradata,问题。那么目标表将从源表中获取CustomerID和CustomerName，而最后一个字段SQL\u RESULT将从存储在源表中的SQL语句中获取结果？这意味着源表中的SQL Query字段中保存的SQL语句将只生成一条带有单个字段的记录，对吗？表中有select语句或insert语句吗？表中有存储的SQL语句。在多个列中？你能分享这个表格的布局和一些样本数据吗？我猜光标在这个表中循环并动态执行这些语句就可以了。@Andrew:是的，我在表中有SELECT语句。我想运行这些sql查询并用查询
问题。那么目标表将从源表中获取CustomerID和CustomerName，而最后一个字段
SQL\u RESULTSQL QuerySQL\u RESULTSQL QuerysqlQueryS1S1sqlQueryC1sqlQuerys1WHERE sqlQuery NOT NULLsource\u table\u cursorsqlQueryS1S1sqlQueryC1sqlQuerys1WHERE sqlQuery NOT NULLsource\u table\u cursorCREATE PROCEDURE <yourdatbase>.MyNewProcedure()
BEGIN
--Declare variables to hold the three fields as we loop through them with the cursor
--You'll need to change these types to match your table's data type so we can fetch
-- them without error inside the cursor loop
DECLARE customerID INT;
DECLARE customerName VARCHAR(50);
DECLARE sqlQUERY as VARCHAR(10000);
DECLARE source_table_cursor CURSOR FOR SELECT customerID, customerName, SQLQuery FROM <yourdatabase>.yoursourcetable FOR READ ONLY;
OPEN source_table_cursor;
looplabel:
LOOP
--We'll need a cursor for a dynamic statement
--And we'll also need an integer to catch your query
--results (Assuming they are all like (Sum(<somefield>) or some
--type of INT
DECLARE C1 CURSOR FOR S1;
DECLARE sqlResults as INT;
FETCH source_table_cursor INTO customerID, customerName, sqlQuery;
--WOAH THERE! Cursor issues something went wrong die die die
IF (SQLSTATE ='02000') THEN
LEAVE label1;
END IF;
--Now that we have a record and a sql statement we will need another cursor
--where we will execute, dynamically, the SQL statement and then fetch the
--single record result to update our target table
PREPARE S1 FROM sqlQuery;
OPEN C1;
FETCH C1 INTO sqlResults;
--Now we can INsert into your target table
INSERT INTO <yourdatabase>.yourtargettable (customerID, customerName SQL_RESULT)
VALUES (customerID, customerName, sqlResults);
CLOSE C1;
END LOOP looplabel;
CLOSE demographic_cursor;
END