LogoLogo
BlogTwitterDiscordTelegramSignup/Login
  • Getting Started
    • Welcome to Spice.ai Cloud
    • Getting Started
      • Sign in with GitHub
      • Create a Spice app
      • Add a Dataset and query data
      • Add AI Model and chat with your data
      • Next Steps
    • FAQ
  • Features
    • Federated SQL Query
    • Data Acceleration
      • In-Memory Arrow Data Accelerator
      • DuckDB Data Accelerator
      • PostgreSQL Data Accelerator
      • SQLite Data Accelerator
    • Search & Retrieval
    • AI Gateway
    • Semantic Models
    • ML Models
    • Observability
      • Task History
      • Zipkin
  • Building Blocks
    • Data Connectors
      • ABFS
      • ClickHouse
      • Databricks
      • Delta Lake
      • Dremio
      • DuckDB
      • DynamoDB
      • FlightSQL
      • FTP
      • GitHub
      • GraphQL
      • HTTPS
      • LocalPod
      • Memory
      • MSSQL
      • MySQL
      • ODBC
      • Postgres
      • S3
      • SharePoint
      • Snowflake
      • Spark
      • SpiceAI
    • Model Providers
      • Anthropic
      • Azure
      • Hugging Face
      • OpenAI
      • Perplexity
      • SpiceAI
      • XAI
  • API
    • SQL Query API
      • HTTP API
      • Apache Arrow Flight API
    • OpenAI API
    • Health API
  • Portal
    • Playground
      • SQL Query
      • AI Chat
    • Organizations
    • Apps
      • API keys
      • Secrets
      • Connect GitHub
      • Transfer
    • Public Apps
    • App Spicepod
      • Spicepod Configuration
      • Deployments
      • Spice Runtime Versions
    • Monitoring
    • Profile
      • Personal Access Tokens
  • Use-Cases
    • Agentic AI Apps
    • Database CDN
    • Data Lakehouse
    • Enterprise Search
    • Enterprise RAG
  • SDKs
    • Python SDK
      • Streaming
    • Node.js SDK
      • Streaming
      • API Reference
    • Go SDK
    • Rust SDK
    • Dotnet SDK
    • Java SDK
  • Integrations
    • GitHub Copilot
    • Grafana
  • REFERENCE
    • Core Concepts
      • Duration Literals
    • SQL Reference
      • Data Types
      • SQL Functions
        • Aggregate
          • APPROX_COUNT_DISTINCT
          • AVG
          • BIT_AND
          • BIT_OR
          • CORR
          • COUNT
          • COVAR_POP
          • COVAR_SAMP
          • HLL
          • LISTAGG
          • MAX
          • MIN
          • NDV
          • STDDEV
          • STDDEV_POP
          • STDDEV_SAMP
          • SUM
          • VAR_POP
          • VAR_SAMP
        • Binary
          • BASE64
          • BIT_LENGTH
          • FROM_HEX
          • HEX
          • TO_HEX
          • UNBASE64
          • UNHEX
        • Bitwise
          • BIT_AND
          • BIT_OR
          • LSHIFT
          • RSHIFT
          • XOR
        • Boolean
          • IS [NOT] DISTINCT FROM
          • ISFALSE
          • IS [NOT] NULL
          • ISNUMERIC
          • ISTRUE
          • IS_MEMBER
        • Conditional
          • BOOL_AND
          • BOOL_OR
          • CASE
          • COALESCE
          • GREATEST
          • LEAST
          • NULLIF
        • Conversion
          • BINARY_STRING
          • CAST
          • CONVERT_FROM
          • CONVERT_REPLACEUTF8
          • CONVERT_TIMEZONE
          • CONVERT_TO
          • FLATTEN
          • FROM_HEX
          • HASH
          • HEX
          • TOASCII
          • TO_CHAR
          • TO_DATE
          • TO_HEX
          • TO_NUMBER
          • TO_TIME
          • TO_TIMESTAMP
          • UNHEX
        • Cryptography
          • AES_DECRYPT
          • AES_ENCRYPT
          • MD5
          • SHA
          • SHA1
          • SHA256
          • SHA512
        • Data Generation
          • RANDOM
        • Datatype
          • IS_BIGINT
          • IS_DATE
          • IS_INT
          • IS_VARCHAR
          • SIZE
          • TYPEOF
        • Date/Time
          • CONVERT_TIMEZONE
          • CURRENT_DATE
          • CURRENT_DATE_UTC
          • CURRENT_TIME
          • CURRENT_TIMESTAMP
          • DATEDIFF
          • DATE_ADD
          • DATE_DIFF
          • DATE_PART
          • DATE_SUB
          • DATE_TRUNC
          • DAY
          • DAYOFMONTH
          • DAYOFWEEK
          • DAYOFYEAR
          • EXTRACT
          • HOUR
          • LAST_DAY
          • MINUTE
          • MONTH
          • MONTHS_BETWEEN
          • NEXT_DAY
          • QUARTER
          • SECOND
          • TIMESTAMPADD
          • TIMESTAMPDIFF
          • TO_DATE
          • TO_TIME
          • TO_TIMESTAMP
          • UNIX_TIMESTAMP
          • WEEK
          • WEEKOFYEAR
          • YEAR
        • Math
          • ABS
          • ACOS
          • ASIN
          • ATAN
          • CBRT
          • CEILING
          • COS
          • COSH
          • COT
          • DEGREES
          • E
          • EXP
          • FLOOR
          • LOG
          • LOG10
          • MOD
          • PI
          • POWER
          • RADIANS
          • ROUND
          • SIGN
          • SIN
          • SINH
          • SQRT
          • STDDEV
          • STDDEV_POP
          • STDDEV_SAMP
          • TAN
          • TANH
          • TRUNCATE
        • Percentile
          • MEDIAN
          • PERCENTILE_CONT
          • PERCENTILE_DISC
        • Regular Expressions
          • REGEXP_EXTRACT
          • REGEXP_LIKE
          • REGEXP_MATCHES
          • REGEXP_REPLACE
          • REGEXP_SPLIT
        • Semistructured Data
          • ARRAY_CONTAINS
          • MAP_KEYS
          • MAP_VALUES
        • String
          • ASCII
          • BASE64
          • BTRIM
          • CHARACTER_LENGTH
          • CHAR_LENGTH
          • CHR
          • COL_LIKE
          • CONCAT
          • CONCAT_WS
          • ENDS_WITH
          • FROM_HEX
          • HEX
          • ILIKE
          • INITCAP
          • INSTR
          • IS_UTF8
          • LCASE
          • LEFT
          • LENGTH
          • LEVENSHTEIN
          • LIKE
          • LOCATE
          • LOWER
          • LPAD
          • LTRIM
          • MASK
          • MASK_FIRST_N
          • MASK_HASH
          • MASK_LAST_N
          • MASK_SHOW_FIRST_N
          • MASK_SHOW_LAST_N
          • OCTET_LENGTH
          • POSITION
          • QUOTE
          • REGEXP_EXTRACT
          • REGEXP_LIKE
          • REGEXP_MATCHES
          • REGEXP_REPLACE
          • REGEXP_SPLIT
          • REPEAT
          • REPEATSTR
          • REPLACE
          • REVERSE
          • RIGHT
          • RPAD
          • RTRIM
          • SIMILAR_TO
          • SOUNDEX
          • SPLIT_PART
          • STARTS_WITH
          • STRPOS
          • SUBSTRING
          • SUBSTRING_INDEX
          • TOASCII
          • TO_HEX
          • TRANSLATE
          • TRIM
          • UCASE
          • UNBASE64
          • UNHEX
          • UPPER
        • Window
          • COUNT
          • COVAR_POP
          • COVAR_SAMP
          • CUME_DIST
          • DENSE_RANK
          • FIRST_VALUE
          • HLL
          • LAG
          • LEAD
          • MAX
          • MIN
          • NDV
          • NTILE
          • PERCENT_RANK
          • RANK
          • ROW_NUMBER
          • SUM
          • VAR_POP
          • VAR_SAMP
      • SQL Commands
        • SELECT
        • USE
        • SHOW
        • DESCRIBE
        • WITH
    • Release Notes
  • Pricing
    • Paid Plans
    • Community Plan
  • Support
    • Support
  • Security
    • Security at Spice AI
    • Report a vulnerability
  • Legal
    • Privacy Policy
    • Website Terms of Use
    • Terms of Service
    • End User License Agreement
Powered by GitBook
On this page
  • Syntax
  • Usage Notes

Was this helpful?

Edit on GitHub
Export as PDF
  1. REFERENCE
  2. SQL Reference
  3. SQL Functions
  4. String

SOUNDEX

Returns a string that contains a phonetic representation of the input string.

Last updated 2 years ago

Was this helpful?

Syntax

SOUNDEX(expression varchar) → varchar

  • expression: The expression for which a representation of the pronunciation is returned.

Examples

SOUNDEX example
SELECT SOUNDEX('Smith'), SOUNDEX('Smythe')
-- EXPR$0, EXPR$1
-- S530, S530
SOUNDEX example
SELECT SOUNDEX('the data lake'), SOUNDEX('the data lakehouse'), SOUNDEX('the data warehouse')
-- EXPR$0, EXPR$1, EXPR$2
-- T334, T334, T336

Usage Notes

You can use this function to determine whether two strings (for example, similar last names ‘Smith’ and ‘Smythe’) have similar pronounciations in the English language. This function uses the , which is described in . This function returns only four characters (one letter and three digits). As a result, the output is primarily determined by the first few syllables of the input, rather than the entire string.

Soundex phonetic algorithm
Soundex System