PostgreSQL - BIGINT Integer Data Type

In PostgreSQL, BIGINT is one of several integer data types, and it's used to store large integer values.

Properties of `BIGINT`:

Storage Size: 8 bytes
Range: -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

Examples:

Creating a table with a BIGINT column:

CREATE TABLE large_numbers (
    id BIGINT PRIMARY KEY,
    description TEXT
);

Inserting data into the BIGINT column:

INSERT INTO large_numbers (id, description) VALUES (9223372036854775807, 'Maximum BIGINT value');

Querying data from a BIGINT column:

SELECT * FROM large_numbers WHERE id > 9000000000000000000;

Points to Consider:

Use BIGINT only when you expect the values to exceed the range provided by the smaller integer types. Otherwise, it's more efficient to use INTEGER or SMALLINT as they require less storage.
Converting between integer types and floating-point types can result in rounding errors, so always be cautious when performing such operations.
When inserting values into a BIGINT column, ensure the values are within the allowable range. Attempting to insert values outside the range will result in an error.
Indexing a BIGINT column will take up more disk space than indexing a smaller integer type. If you're working with a large dataset and are concerned about storage efficiency, ensure you're using the most appropriate data type for your use case.
In situations where you need a large range but also need to store fractional values, you'd need to consider using other data types like DECIMAL or NUMERIC.

In essence, BIGINT provides a way to store very large integer values, and it's especially useful in scenarios like large-scale analytics, unique identifiers that have a vast range, or other cases where extremely large numbers are used.

Defining columns with BIGINT in PostgreSQL:
- Description: BIGINT is a numeric data type in PostgreSQL that can store 8-byte signed integers. It's used when you need to handle very large integer values.
- Code:
```
CREATE TABLE my_table (
    my_column BIGINT
);
```
Inserting and updating BIGINT values in PostgreSQL:
- Description: You can insert and update BIGINT values using standard SQL INSERT and UPDATE statements.
- Code:
```
INSERT INTO my_table (my_column) VALUES (123456789012345);
```
```
UPDATE my_table SET my_column = 987654321098765 WHERE some_condition;
```

Range of values for BIGINT in PostgreSQL:

Description: BIGINT in PostgreSQL has a range of -9223372036854775808 to 9223372036854775807 for signed integers.

Code:

CREATE TABLE my_numbers (
    big_number BIGINT
);

INSERT INTO my_numbers (big_number) VALUES (-9223372036854775808);
INSERT INTO my_numbers (big_number) VALUES (9223372036854775807);

Using BIGINT in arithmetic and mathematical operations in PostgreSQL:
- Description: BIGINT can be used in various arithmetic and mathematical operations just like any other numeric type.
- Code:
```
SELECT big_column * 2 FROM my_table WHERE some_condition;
```
Converting data types to and from BIGINT in PostgreSQL:
- Description: You can convert data types to and from BIGINT using explicit casting or conversion functions.
- Code:
```
SELECT CAST(some_column AS BIGINT) FROM some_table;
```
```
SELECT my_column::TEXT FROM my_table;
```
Indexing and querying on columns with BIGINT in PostgreSQL:
- Description: Indexing BIGINT columns can improve query performance, especially when searching and sorting based on these values.
- Code (Indexing):
```
CREATE INDEX idx_big_number ON my_numbers(big_number);
```
```
SELECT * FROM my_numbers WHERE big_number = 123456789012345;
```
Handling overflow and precision with BIGINT in PostgreSQL:
- Description: Be cautious of potential overflow when dealing with very large values. PostgreSQL will raise an error if you exceed the range of BIGINT.
- Code:
```
INSERT INTO my_table (my_column) VALUES (9999999999999999999); -- This will result in an error
```

PostgreSQL - BIGINT Integer Data Type

Properties of BIGINT:

Examples:

Points to Consider:

Properties of `BIGINT`: