## Which is faster SP or function?

As you can see, the scalar functions are slower than stored procedures. In average, the execution time of the scalar function was 57 seconds and the stored procedure 36 seconds….3. Are the scalar functions evil?

Stored procedure execution time (s) | Function execution time (s) |
---|---|

35 | 58 |

Average: 35.8 | Average: 57.4 |

**How do you optimize stored procedures?**

Stored Procedure Optimization

- Include SET NOCOUNT ON statement.
- Use schema name with object name.
- Do not use the prefix “sp_” in the stored procedure name.
- Use the sp_executesql stored procedure instead of the EXECUTE statement.
- Try to avoid using SQL Server cursors whenever possible.

**How do you do mathematical operations in SQL?**

Arithmetic operators can perform arithmetical operations on numeric operands involved….Arithmetic Operators.

Operator | Meaning | Operates on |
---|---|---|

+ (Add) | Addition | Numeric value |

– (Subtract) | Subtraction | Numeric value |

* (Multiply) | Multiplication | Numeric value |

/ (Divide) | Division | Numeric value |

### Can you perform calculations in SQL?

Solution. Yes – SQL Server can perform basic addition, subtraction, multiplication and division. So if you need some of those basic building blocks those are available and we will walk through some examples in this tip. In addition, SQL Server can calculate SUM, COUNT, AVG, etc.

**What are the different mathematical functions in SQL Server?**

ABS, DEGREES, CEILING, FLOOR, POWER, SIGN, and RADIANS are Arithmetic functions that return the same data type as the input value. Furthermore, the EXP, SQUARE, SQRT, LOG10, and LOG functions, among others, CAST their input values to the FLOAT data type and return the result as a FLOAT value.

**Which is more performance efficient query or stored procedure?**

where as stored procedure is compiled when it is submitted for the first time & this compiled content is stored in something called procedure cache,for subsequent calls no compilation,just execution & hence better performance than query.

#### How to use stored procedures in SQL Server 2019?

We will start with the basic examples of Stored Procedures in the SQL server 2019 and further move to advanced stored procedure examples in sql server. 1. Stored Procedure to insert data 2. Stored Procedure to update table 3. Stored procedure to select data from table 4. Stored Procedure to delete data from table 5.

**Can you run multiple queries in a stored procedure in SQL?**

Stored procedure in SQL with multiple queries You can execute multiple queries in a stored procedure in SQL server 2019. For example, we will execute multiple SELECT queries on a table and store the values in different variables.

**How to use multiple parameters in a stored procedure?**

The stored procedure can take one or two or both the parameters and use these parameter values in the Select query to return the corresponding resultset. NULL value is the default value for both the parameters. We used SET QUOTED_IDENTIFIER ON option to esacpe the single quotes in our dynamic query.

## Which statement should be on top of the stored procedure?

All the DDL (DROP, CREATE etc.) statements should be on the top of the stored procedure. Each temporary table should have Primary Key & Clustered Index.