CREATE PROCEDURE contains no statements

 The error message "CREATE PROCEDURE contains no statements" indicates that you are attempting to create a stored procedure without including any executable SQL statements within its body.

To resolve this issue, you need to ensure that your stored procedure contains valid SQL statements between the BEGIN and END keywords.

Here’s a basic template for creating a stored procedure with at least one SQL statement:

Example

CREATE PROCEDURE MyProcedure
AS
BEGIN
    -- Insert your SQL statements here
    SELECT 'Hello, World!';
END
GO

In the example above, the SELECT 'Hello, World!'; statement ensures that the procedure contains at least one executable statement. You can replace this with your actual SQL logic.

Steps to Troubleshoot

1. Verify the Procedure Body: Ensure that there are valid SQL statements within the procedure's BEGIN and END block.
2. Check for Syntax Errors: Ensure there are no syntax errors that might cause the SQL parser to misinterpret the procedure's content.
3. Include at Least One Statement: Ensure there is at least one executable statement in the procedure.

Common Mistakes

• Empty BEGIN...END Block:

CREATE PROCEDURE MyProcedure
AS
BEGIN
END
GO

• Commented-out Statements: Ensure that all statements are not commented out.

CREATE PROCEDURE MyProcedure
AS
BEGIN
    -- SELECT 'This will not execute';
END
GO

Correct Example with Executable Statements

Here’s a more detailed example with typical SQL logic:

CREATE PROCEDURE MyProcedure
AS
BEGIN
    -- Declare variables
    DECLARE @MyVar INT;

    -- Set variable value
    SET @MyVar = 1;

    -- Select statement
    SELECT @MyVar AS Value;

    -- Insert statement (example)
    INSERT INTO MyTable (Column1) VALUES (@MyVar);

    -- Update statement (example)
    UPDATE MyTable
    SET Column1 = @MyVar
    WHERE SomeCondition = 'Value';
END
GO

In this example, the procedure includes variable declarations, a SELECT statement, an INSERT statement, and an UPDATE statement, ensuring it has executable content. Make sure to tailor the statements to match the actual logic you need in your procedure.

Batch/procedure exceeds maximum length of %d characters

 Batch/procedure exceeds maximum length of %d characters throws with SQL server error code 123.

When you encounter the SQL Server error message "Batch/procedure exceeds maximum length of %d characters," it indicates that the batch or stored procedure you are trying to execute is too long. The maximum length for a batch or stored procedure in SQL Server is 65,536 characters.

Here are steps to resolve this issue:

1. Split the Batch or Procedure

Divide your large procedure into smaller, more manageable procedures. Then, call these smaller procedures from a main procedure.

Example

Original Large Procedure

CREATE PROCEDURE LargeProcedure
AS
BEGIN
    -- Very long SQL logic
END
GO

Splitting into Smaller Procedures

CREATE PROCEDURE Part1
AS
BEGIN
    -- Part 1 of the SQL logic
END
GO

CREATE PROCEDURE Part2
AS
BEGIN
    -- Part 2 of the SQL logic
END
GO

CREATE PROCEDURE LargeProcedure
AS
BEGIN
    EXEC Part1;
    EXEC Part2;
END
GO

2. Use Temporary Tables

Use temporary tables to store intermediate results. This can help in breaking down complex queries.

Example

CREATE PROCEDURE LargeProcedure
AS
BEGIN
    -- Part 1: Insert intermediate results into a temporary table
    SELECT * 
    INTO #TempTable
    FROM SomeLargeTable
    WHERE SomeCondition;

    -- Part 2: Process the data from the temporary table
    SELECT * 
    FROM #TempTable
    WHERE AnotherCondition;

    -- Drop the temporary table
    DROP TABLE #TempTable;
END
GO

3. Refactor Code

Review the code to eliminate redundant or unnecessary parts, and ensure it is optimized.

4. Use Functions

If there are reusable parts of the logic, consider moving them to functions.

Example

CREATE FUNCTION dbo.MyFunction(@Param INT)
RETURNS INT
AS
BEGIN
    DECLARE @Result INT;
    -- Some logic
    RETURN @Result;
END
GO

CREATE PROCEDURE LargeProcedure
AS
BEGIN
    DECLARE @Value INT;
    SET @Value = dbo.MyFunction(@SomeParam);
    -- Use @Value in further logic
END
GO

5. Dynamic SQL

For extremely complex queries, consider using dynamic SQL to construct parts of the query at runtime.

Example

CREATE PROCEDURE LargeProcedure
AS
BEGIN
    DECLARE @SQL NVARCHAR(MAX);
    SET @SQL = N'SELECT * FROM SomeTable WHERE SomeCondition';
    EXEC sp_executesql @SQL;
END
GO

By following these steps, you can manage the size of your SQL batches and procedures, ensuring they stay within the limits set by SQL Server