Applies to:  CELONIS 4.0 CELONIS 4.2 CELONIS 4.3 CELONIS 4.4 CELONIS 4.5 CELONIS 4.6 CELONIS 4.7 

Description

LEFT returns the first n characters of a string. If the string is smaller than n characters, the whole string is returned.

Supported input column types: STRING

Output column type: STRING

Syntax

LEFT ( table.column, n ) 

If n is zero or negative, an empty STRING will be returned for all input, except NULL.

NULL handling

If the input value is NULL, the result is NULL as well.

Example


[1] Get first character of string.

Query
Column1
LEFT ( "Table1"."Column1" , 1 )
Input
Table1
Column1 : STRING
'abc'
' bc'
''
null
' '
null
'Left'
'Right'
Output
Result
Column1 : STRING
'a'
' '
''
null
' '
null
'L'
'R'


See also:

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