## What is number data type in SQL Server?

Numeric data type with fixed precision and scale (accuracy 1-38, 18 by default and scale 0-p, 0 by default). Numeric data type with float precision, where n is the number of mantis bits (1-24, accuracy of 7 digits, size of 4 bytes and 25-53, accuracy of 15 digits and size of 8 bytes).

**Is number a valid SQL data type?**

SQL Server supports the following data type’s categories: Exact numeric: bit, tinyint, smallint, int, bigint, decimal, numeric, money and smallmoney. Approximate numeric: Read and float. Date and time: date, DateTime, datetime2, datetimeoffset, smalldatetime, time.

**Which numeric data type has a precision 2 2 16?**

Exact numeric data types

Type | Value | Disk usage |
---|---|---|

byteint (alias int1) | 8-bit values in range -128 to 127 | 1 byte |

smallint (alias int2) | 16-bit values in range -32,768 to 32,767 | 2 bytes |

integer (alias int and int4) | 32-bit values in range -2,147,483,648 to 2,147,483,647 | 4 bytes |

### How do I use numeric in SQL?

Numeric Data Types Allows numbers from -10^38 +1 to 10^38 –1. The p parameter indicates the maximum total number of digits that can be stored (both to the left and to the right of the decimal point). p must be a value from 1 to 38. Default is 18.

**What is data type number?**

Numeric data types are numbers stored in database columns. These data types are typically grouped by: The exact numeric types are INTEGER , BIGINT , DECIMAL , NUMERIC , NUMBER , and MONEY . Approximate numeric types, values where the precision needs to be preserved and the scale can be floating.

**What is SQL data type?**

SQL Data Type is an attribute that specifies the type of data of any object. Each column, variable and expression has a related data type in SQL. You can use these data types while creating your tables. You can choose a data type for a table column based on your requirement.

## What is length PREC and scale in SQL Server?

Precision is the number of digits in a number. Scale is the number of digits to the right of the decimal point in a number. For example, the number 123.45 has a precision of 5 and a scale of 2. In SQL Server, the default maximum precision of numeric and decimal data types is 38.

**Which is the number 1 data type?**

Oracle Built-in Data Types

Code | Data Type |
---|---|

1 | VARCHAR2 ( size [ BYTE | CHAR ]) |

1 | NVARCHAR2 ( size ) |

2 | NUMBER [ ( p [, s ]) ] |

2 | FLOAT [( p )] |

**What are the SQL data types?**

Data types in SQL Server are organized into the following categories:

- Exact numerics. Unicode character strings.
- Approximate numerics. Binary strings.
- Date and time. Other data types.
- Character strings.
- bigint. numeric.
- bit. smallint.
- decimal. smallmoney.
- int. tinyint.