Bugl — code interview practice that feels like a game

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Flash cards

Review the key moves

1/4

Core idea

What is the main idea behind SQL Server SUBSTRING() Function?

Lesson checks

Short Mimo-style checks built from this lesson's code, terms, and sequence.

1Quick choice

Which statement best captures the main point of this lesson?

2Fill blank

Complete the missing token from the example code.

___ SUBSTRING('SQL Tutorial', 1, 3) AS ExtractString;

3Order

Put the learning moves in the order that makes the concept easiest to apply.

The SUBSTRING() function extracts some characters from a string.

Definition and Usage

SQL Server SUBSTRING() Function

Example

SELECT SUBSTRING('SQL Tutorial', 1, 3) AS ExtractString;

The SUBSTRING() function extracts some characters from a string.

Syntax

SUBSTRING(
string
,
start
,
length
)

Parameter	Description
string	Required. The string to extract from
start	Required. The start position. The first position in string is 1
length	Required. The number of characters to extract. Must be a positive number

Works in:	SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse