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Code Examples
The code examples in this book are for illustration only. In many cases, however, you can
copy and paste parts of examples and run them in your environment.
• Pretty Printing of JSON Data
To promote readability, especially of lengthy or complex JSON data, output is sometimes
shown pretty-printed (formatted) in code examples.
• Execution Plans
Some of the code examples in this book present execution plans. These are for
illustration only. Running examples that are presented here in your environment is likely
to result in different execution plans from those presented here.
• Reminder About Case Sensitivity
JSON is case-sensitive. SQL is case-insensitive, but names in SQL code are implicitly
uppercase.
Pretty Printing of JSON Data
To promote readability, especially of lengthy or complex JSON data, output is sometimes
shown pretty-printed (formatted) in code examples.
Execution Plans
Some of the code examples in this book present execution plans. These are for illustration
only. Running examples that are presented here in your environment is likely to result in
different execution plans from those presented here.
Reminder About Case Sensitivity
JSON is case-sensitive. SQL is case-insensitive, but names in SQL code are implicitly
uppercase.
When examining the examples in this book, keep in mind the following:
• SQL is case-insensitive, but names in SQL code are implicitly uppercase, unless you
enclose them in double quotation marks ( " ).
• JSON is case-sensitive. You must refer to SQL names in JSON code using the correct
case: uppercase SQL names must be written as uppercase.
For example, if you create a table named my_table in SQL without using double quotation
marks, then you must refer to it in JSON code as " MY_TABLE ".
Preface
xvii
Changes in This Release for Oracle
Database JSON Developer's Guide
Changes in Oracle Database for this book are described.
Oracle Database JSON Developer's Guide was a new book in Oracle Database 12c
Release 2 (12.2.0.1). Information about using JSON data in Oracle Database 12c
Release 1 (12.1.0.2) is available in Oracle XML DB Developer’s Guide.
• Changes in Oracle Database Release 19c, Version 19.1, for JSON Developer’s
Guide
The changes in JSON support and in Oracle Database JSON Developer’s Guide
for Oracle Database Release 19c, Version 19.1, are described.
• Changes in Oracle Database Release 18c, Version 18.1, for JSON Developer’s
Guide
The changes in JSON support and in Oracle Database JSON Developer’s Guide
for Oracle Database Release 18c, Version 18.1, are described.
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