Create a new table named PRODUCT. The product table will have two attributes; product ID as integer, not null, and a primary key constraint set to unique. product description as varchar(30), not null specification.
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
Create a new table named PRODUCT. The product table will have two attributes;
- product ID as integer, not null, and a primary key constraint set to unique.
- product description as varchar(30), not null specification.
I am not sure how to do a primary key contraint set to unique. I believe I did the first two correct.
![### Database Table Structure for "Table_1"
This table represents the structure of a database table named **Table_1** within the database **dbo** under the catalog **cis305**. Below is a detailed breakdown of the table's columns, their data types, and nullability:
#### Column Details:
1. **Product_ID**
- **Data Type:** `int`
- **Allow Nulls:** Yes
- **Description:** This column serves as the identifier for each product within the table. It is an integer type allowing null values, which means it can have a null value for some rows.
2. **Product_Desc**
- **Data Type:** `varchar(32)`
- **Allow Nulls:** Yes
- **Description:** This column is used to store the description of the product. It is a variable character type with a maximum length of 32 characters, allowing null values.
3. **Constraint: [PK_product_id]**
- **Data Type:** `nchar(10)`
- **Allow Nulls:** No
- **Description:** This represents a primary key constraint named `PK_product_id` for the table. It's a fixed-length non-Unicode character type that can store up to 10 characters and does not allow null values.
### Explanation of the Components:
- **`Column Name`:** Specifies the names of the columns in the table.
- **`Data Type`:** Indicates the type of data that can be stored in each column.
- **`Allow Nulls`:** Shows whether the column allows null values. A checkbox indicates that null values are allowed; unchecked means it does not allow null values.
### Diagram Representation:
- **Table name:** `Table_1`
- **Database:** `dbo` under `cis305`
- **Columns:**
- `Product_ID` (int, allows null)
- `Product_Desc` (varchar(32), allows null)
- `[Constraint PK_product_id]` (nchar(10), does not allow null)
This table structure is essential for database design and helps ensure data integrity and proper organization within the database system.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F14fe048c-d6d9-4578-a55c-f4c4b2bd652b%2F729abd04-b91f-4187-afda-692f80b7dfc8%2F5sjiftc.jpeg&w=3840&q=75)
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