wht is the difference between truncat,drop in sqlserver wht is the difference between function and stored procedure

3 Answers   Apollo,

---

what is a database transaction? : Sql dba

0 Answers  

---

How do you define a foreign key?

0 Answers  

---

IF EMP HAS 2 ROWS,DEPT HAS 4 ROWS.WHATS THE RESULT OF SELECT * FROM EMP,DEPT;

1 Answers  

---

What is a pdo connection?

0 Answers  

---

---

Show code of a cursor for loop.

0 Answers  

---

What is time based sql injection?

0 Answers  

---

Lookups are a key component in sql server integration services (ssis). Explain its purpose?

0 Answers  

---

Which is better join or inner query?

0 Answers  

---

Can pl sql procedure have a return statement?

0 Answers  

---

SELECT emp_num, years, SUM(salary) FROM sales UNION ALL SELECT emp_id, SUM(takehomepay) FROM marketing What error is present in the sample code above? 1. Queries being combined with the UNION ALL statement are not allowed to have SELECT lists with a different number of expressions. 2. You are not allowed to use aggregate functions within two queries joined by a UNION ALL statement. 3. The UNION ALL statement incorrectly combines the "years" result from the first query with the "SUM (takehomepay)" result from the second query. 4. Unless the UNION ALL statement is replaced with a UNION statement, the queries will return duplicates. 5. The "emp_id" column from the second query must be renamed (or aliased) as "emp_num" so that it corresponds to the column name from the first query. Otherwise, the queries will not execute.

3 Answers  

---

What will you get by the cursor attribute sql%notfound?

0 Answers  

---