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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: SyntaxThe HCL OneDB™ Guide to SQL: Syntax describes the syntax of the statements, data types, expressions, operators, and built-in functions of the HCL OneDB™ dialect of the SQL language.
Data types and expressionsThese topics describe the data types and expressions that HCL OneDB™supports.
Expression
Function Expressions
Length functionsUse length functions to determine the length of a character column, string, or variable, or of the value returned by a character expression, or (for CHAR_LENGTH in multibyte locales) the number of logical characters.

Length functions

Use length functions to determine the length of a character column, string, or variable, or of the value returned by a character expression, or (for CHAR_LENGTH in multibyte locales) the number of logical characters.

Length Functions

Notes:

¹ HCL OneDB™ extension
² See Quoted String
³ ESQL/C
⁴ SPL Language


Element	Description	Restrictions	Syntax
column	Name of a column in table	Must have a character data type	Identifier
table	Name of the table in which the specified column occurs	Must exist	Identifier
variable	Host variable or SPL variable that contains a character string	Must have a character data type	See language-specific rules for names.

Each of these functions has a distinct purpose:

LENGTH (also known as LEN)
OCTET_LENGTH
CHAR_LENGTH (also known as CHARACTER_LENGTH)