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How to Handle Single Quotes in Oracle SQL INSERT Statements?

Susan Sarandon
Release: 2025-01-16 19:22:09
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How to Handle Single Quotes in Oracle SQL INSERT Statements?

Mastering Single Quotes in Oracle SQL INSERT Statements

Inserting text data into Oracle SQL databases requires careful handling of single quotes, which act as string delimiters. This guide demonstrates two effective methods to correctly insert values containing single quotes, preserving data integrity.

Method 1: Double Single Quotes

The simplest approach is to use two consecutive single quotes ('') within the text value to represent a single quote. This signals to Oracle that the single quote is part of the data, not a delimiter.

Example:

<code class="language-sql">INSERT INTO table_name (first_name, last_name)
VALUES ('ROBERT', 'D''COSTA');</code>
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Here, the double single quotes ('') within 'D''COSTA' ensure the single quote is stored correctly.

Method 2: Quoted Strings (Oracle 10g and later)

Oracle 10g and subsequent versions offer a more robust method using q$ and $. This technique encloses the entire string value in quotes, allowing for single quotes within the data without escaping.

Example:

<code class="language-sql">INSERT INTO table_name (first_name, last_name)
VALUES (q'$ROBERT$', q'$D'COSTA$'');</code>
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q$ marks the beginning, and $ the end of the quoted string. This approach neatly handles single quotes within the text.

Both methods effectively manage single quotes in Oracle SQL INSERT statements, guaranteeing accurate data storage and retrieval. Choose the method that best suits your Oracle version and coding style.

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