How to Return A Substring From A Text In Oracle?

To return a substring from a text in Oracle, you can use the SUBSTR() function. This function takes three arguments: the text from which you want to extract the substring, the starting position of the substring, and the length of the substring.

For example, to extract a substring starting at the 5th character and with a length of 3 characters from the text 'Hello World', you would use the following query:

1

SELECT SUBSTR('Hello World', 5, 3) FROM dual;

This query would return 'o W'. Remember that in Oracle, string indexes start at 1, not 0. So the first character in a string has an index of 1.

How to substring a text value in Oracle SQL?

To substring a text value in Oracle SQL, you can use the SUBSTR function.

The syntax for the SUBSTR function is as follows:

1

SUBSTR(string, start_position, length)

• string: the input string that you want to extract a substring from.
• start_position: the starting position from where the substring should begin.
• length: the number of characters to extract from the starting position.

For example, suppose you have a table employees with a column full_name and you want to extract the first 5 characters from the full_name column:

1
2

SELECT SUBSTR(full_name, 1, 5) AS first_name
FROM employees;

This will extract the first 5 characters from the full_name column and display it as first_name in the result set.

You can also use the SUBSTR function with other functions or conditions to customize the substring you want to extract in Oracle SQL.

What is the function to return a substring starting from a specific character in Oracle?

SUBSTR() function can be used to return a substring starting from a specific character in Oracle. The syntax is as follows:

1

SUBSTR(string, start_position)

Where:

• string is the actual string or expression from which to extract the substring
• start_position is the starting position from where to extract the substring

Example:

1
2

SELECT SUBSTR('Hello World', 7) AS Substring
FROM dual;

This query will return "World" as the substring starting from the 7th character in the string "Hello World".

How to return a portion of a text string in Oracle?

To return a portion of a text string in Oracle, you can use the SUBSTR function. The syntax for the SUBSTR function is:

SUBSTR(string, start_position, length)

Where:

• string is the text string from which you want to extract a portion
• start_position is the position in the string where the extraction should begin (counting starts at 1)
• length is the number of characters to extract from the string

For example, if you have a text string 'Hello World' and you want to extract the word 'World', you can use the following query:

SELECT SUBSTR('Hello World', 7, 5) FROM dual;

This will return 'World' as the result.

How to fetch a substring from a column in Oracle SQL?

To fetch a substring from a column in Oracle SQL, you can use the SUBSTR function.

The SUBSTR function takes three arguments: the column name, the starting position of the substring, and the length of the substring.

Here's an example query that fetches a substring of a column named column_name starting at position 3 and with a length of 5 characters:

1
2

SELECT SUBSTR(column_name, 3, 5) 
FROM your_table_name;

Replace column_name with the name of the column you want to fetch a substring from, and your_table_name with the name of your table.

You can also use other string functions like INSTR to determine the starting position dynamically based on a specific pattern or delimiter in the string.

What is the command to fetch a substring in Oracle SQL?

The SUBSTR function is used to fetch a substring in Oracle SQL.

The syntax is:

1
2

SELECT SUBSTR(column_name, starting_position, length)
FROM table_name;

Where:

• column_name: the name of the column from which you want to extract the substring
• starting_position: the position within the string to start extracting characters. The first position in the string is 1.
• length: the number of characters to extract from the starting position.

Example:

1
2

SELECT SUBSTR('Hello World', 7, 5) AS Substring
FROM dual;

This will output: "World"