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LEFT (NoSQL query)

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APPLIES TO: NoSQL

Returns the left part of a string up to the specified number of characters.

Syntax

LEFT(<string_expr>, <numeric_expr>)

Arguments

Description
string_expr A string expression.
numeric_expr A numeric expression specifying the number of characters to extract from string_expr.

Return types

Returns a string expression.

Examples

The following example returns the left part of the string AdventureWorks for various length values.

SELECT VALUE {
    firstZero: LEFT("AdventureWorks", 0),
    firstOne: LEFT("AdventureWorks", 1),
    firstFive: LEFT("AdventureWorks", 5),
    fullLength: LEFT("AdventureWorks", LENGTH("AdventureWorks")),
    beyondMaxLength: LEFT("AdventureWorks", 100)
}

[
  {
    "firstZero": "",
    "firstOne": "A",
    "firstFive": "Adven",
    "fullLength": "AdventureWorks",
    "beyondMaxLength": "AdventureWorks"
  }
]

Remarks

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