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Data Types Used in Mimer SQL


 

The following sections explain how to compile applications using floating point data types, and what data types Mimer SQL uses internally and externally.

Compiling Applications Using Floating Point Data Types

OpenVMS supports various floating point types. Mimer SQL uses the types that the C compiler uses as default. Unfortunately, this differs between the Alpha and Integrity platforms.

F_FLOAT
4 bytes
Used by Mimer on Alpha
S_FLOAT
4 bytes
Used by Mimer on Integrity
G_FLOAT
8 bytes
Used by Mimer on Alpha
T_FLOAT
8 bytes
Used by Mimer on Integrity
D_FLOAT
8 bytes
Not supported by Mimer
H_FLOAT
16 bytes
Not supported by Mimer

External Data Types Supported by Mimer SQL

Any value stored in the database may be read into host language variables as described in the Mimer SQL Programmer's Manual.

Mimer SQL will perform all the necessary conversions and will signal an error if the value to be converted is not compatible with the destination type.


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