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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
ESQL/C GuideThe HCL OneDB™ ESQL/C Programmer's Manual explains how to use , the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
What is HCL OneDB™ ESQL/C?
Numeric data types
The floating-point data types

The floating-point data types

The database server supports the following data types for floating-point values.


SQL floating-point data type	ESQL/C or C language type	Range of values
SMALLFLOAT, REAL	float	Single-precision values with up to 9 significant digits
FLOAT, DOUBLE PRECISION	double	Double-precision values with up to 17 significant digits
DECIMAL(`p`)	decimal	Absolute value range 10^-130 - 10¹²⁴

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