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SQL Server FAQ - Entering Comments in Transact-SQL Statements

By: FYIcenter.com

(Continued from previous topic...)

How To Enter Comments in Transact-SQL Statements?

There are 2 ways to enter comments within Transact-SQL statements:

  • Starting comments with two dashes "--": Everything between "--" and the end of the line is treated as a comment.
  • Entering comments between "/*" and "*/": Everything between "/*" and "*/" is treated as a comment.

Here are some good examples of how to enter comments:

/* The following statement
   creates a table 
   called fyi_links */ 
CREATE TABLE fyi_links (
   id INTEGER PRIMARY KEY,   -- the primary key
   url VARCHAR(80) NOT NULL, -- address of the link
   notes VARCHAR(1024),
   counts INT,               -- number of clicks
   created DATETIME NOT NULL DEFAULT(getdate())
);
GO

-- Get rid of this table
DROP TABLE fyi_links;
GO

(Continued on next topic...)

  1. What Is SQL Language?
  2. What Is Transact-SQL Language?
  3. What Is a Transact-SQL Statement?
  4. How To Start and End Transact-SQL Statements?
  5. How To Enter Comments in Transact-SQL Statements?
  6. What Is a Transact-SQL Statement Batch?
  7. What Happens to a Statement Batch If There Is a Compilation Error?
  8. How To Use GO Command in "sqlcmd"?
  9. How To Create User Messages with PRINT Statements?
  10. How Many Categories of Data Types Used by SQL Server?
  11. What Are Exact Numeric Data Types?
  12. What Are Approximate Numeric Data Types?
  13. What Are Date and Time Data Types?
  14. What Are Character String Data Types?
  15. What Are Unicode Character String Data Types?
  16. What Are Binary String Data Types?
  17. What Are the Differences between CHAR and NCHAR?
  18. What Are the Differences between CHAR and VARCHAR?
  19. What Are the Differences between DECIMAL and FLOAT?

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