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ABL Data Types Addenda

Use large objects in ABL

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Table of Contents
  • Introduction
    • Data types
    • Data type terminology
  • INT64 data type
    • Display Format
    • Related ABL functions
    • INT64 in arithmetic and comparison operations
      • Subtract DATETIME values
      • Mixed INTEGER and INT64 expressions
    • Pass INT64 variables as parameters
    • Determine when to use INT64 versus INTEGER
    • How to specify not to use INT64
  • Large object data types
    • Binary large objects
      • What you can do with BLOB values
      • Restrictions
    • Character large objects
      • What you can do with CLOB values
      • Restrictions
      • CLOB code pages
    • LONGCHAR data type
      • What you can do with LONGCHAR values
      • Restrictions
      • LONGCHAR code pages
  • Use large objects in ABL
    • Copy large objects
      • Convert code pages for CLOB and LONGCHAR values
    • Delete large objects
    • Dump and load large objects
      • Dump large objects
      • Dump all data except large objects
      • Load large objects
    • UNDO subtransactions that contain large object fields
    • Pass LONGCHAR variables as parameters
    • Modify BLOB data
    • Use BLOB values and image files
    • Use BLOB values and word processor files
    • Create a CLOB from a file
  • DATETIME and DATETIME-TZ data types
    • DATETIME data type
    • DATETIME-TZ data type
    • Summary of features
    • Related ABL functions
    • SESSION handle attributes for DATETIME and DATETIME-TZ data types
      • Precedence of default time zone sources for ABL time date functions
    • DATETIME and DATETIME-TZ literals
    • Compare date and datetime values
    • Display formats
      • Display DATETIME data based on display format
      • Display DATETIME-TZ data based on display format
    • DATETIME and DATETIME-TZ limits
    • Datetime arithmetic
      • Add and subtract basic datetime values
      • Add and subtract days plus milliseconds with a datetime value
      • Add, subtract, and obtain specific time intervals
    • Pass DATETIME and DATETIME-TZ as parameters
    • Dump and load DATETIME and DATETIME-TZ fields
  • Arrays
    • Arrays as parameters
    • Pass indeterminate arrays as parameters
    • Deep copy arrays
Table of Contents

Use large objects in ABL

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  • Last Updated: December 3, 2025
  • 1 minute read
    • OpenEdge
    • Version 13.0
    • Documentation

This section provides details and shows examples for using large objects in ABL.

Contents
  • Copy large objects
  • Delete large objects
  • Dump and load large objects
  • UNDO subtransactions that contain large object fields
  • Pass LONGCHAR variables as parameters
  • Modify BLOB data
  • Use BLOB values and image files
  • Use BLOB values and word processor files
  • Create a CLOB from a file
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