Bird
0
0

Which SQL statement is used to start reading rows from a cursor?

easy📝 Conceptual Q2 of 15
SQL - Stored Procedures and Functions
Which SQL statement is used to start reading rows from a cursor?
AOPEN cursor_name
BFETCH cursor_name
CDECLARE cursor_name
DCLOSE cursor_name
Step-by-Step Solution
Solution:

  1. Step 1: Identify cursor lifecycle commands

    DECLARE defines the cursor, OPEN prepares it for use, FETCH reads rows, CLOSE ends it.

  2. Step 2: Determine which starts reading rows

    OPEN is needed before fetching rows; it starts the cursor operation.

  3. Final Answer:

    OPEN cursor_name -> Option A

  4. Quick Check:

    Start reading rows = OPEN [OK]
Quick Trick: OPEN prepares cursor to read rows; FETCH gets rows [OK]
Common Mistakes:
  • Using FETCH before OPEN
  • Confusing DECLARE with starting cursor
  • Closing cursor before reading

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More SQL Quizzes
Advanced Query Patterns - Finding duplicates efficiently - Quiz 12easy CASE Expressions - Searched CASE syntax - Quiz 15hard Common Table Expressions (CTEs) - Recursive CTE for hierarchical data - Quiz 3easy Database Design and Normalization - Second Normal Form (2NF) - Quiz 15hard Database Design and Normalization - Star schema concept - Quiz 11easy Indexes and Query Performance - When indexes help and when they hurt - Quiz 10hard Indexes and Query Performance - When indexes help and when they hurt - Quiz 1easy SQL Security Basics - How SQL injection exploits queries - Quiz 8hard SQL Security Basics - Why SQL security awareness matters - Quiz 13medium Stored Procedures and Functions - Function vs procedure decision - Quiz 14medium