PostgreSQLdata extraction

Extract Values from JSON-like Text in PostgreSQL with Regex

Use PostgreSQL regexp_matches to extract key-value pairs from JSON-like text strings. SQL examples for text data extraction.

The Regex Pattern

Regex pattern

"([^"]+)"\s*:\s*"([^"]+)"

Use this pattern with PostgreSQL's ~ operator.

PostgreSQL SQL Example

-- Extract field values from loosely structured JSON-like text stored in a PostgreSQL text column using regexp_matches
SELECT *
FROM your_table
WHERE your_column ~ '"([^"]+)"\\s*:\\s*"([^"]+)"';

How This Works

Extract field values from loosely structured JSON-like text stored in a PostgreSQL text column using regexp_matches. The regex pattern is used with PostgreSQL's ~ operator to filter rows at the database level.

Using regex directly in SQL is efficient for use cases like data extraction — it avoids loading data into application memory just to filter it with a regex.

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