INFORMIX-ESQL/C Programmer's Manual Introduction

INFORMIX-Client Software Developer's Kit, Version 2.3, supports silent installation in UNIX environments. The installation script includes additional options that allow you to override version checking, so that the installation can proceed without further user interaction.

This manual includes information about the following new features for INFORMIX-ESQL/C:

• New integer data types, which automatically map correctly for 32-bit and 64-bit platforms: int1, int2, int4, mint, mlong, MSHORT, and MCHAR
• The following new functions for date conversion, which allow you to specify the century setting on a per-call basis for 2-digit dates:
• ifx_defmtdate()
• ifx_strdate()
• ifx_dtcvasc()
• ifx_dtcvfmtasc()
• ifx_dttofmtasc()
• New SQLSTATE value, IX001, that indicates a failure of the GET DiagnosticS statement.
• The decimal precision has been increased for conversions from SMALLFLOAT and FLOAT data types to the DECIMAL data type as follows.

  From	To	Old Precision	New Precision
  SMALLFLOAT	DECIMAL	8	9
  FLOAT	DECIMAL	16	17

• Support of multiplexed connections for ESQL/C applications on Windows platforms. Multiplexed connections were previously supported only for ESQL/C applications on UNIX platforms.