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PL/SQL naming conventions

Oracle Database Tips by Donald BurlesonApril 30, 2016

Question: What are some good PL/SQL naming conventions?  What areas do we want naming conventions?

Answer:  Hopefully you already have database naming conventions, standards for naming Oracle database columns and table names.  See schema object names. In addition, it is also important to deploy PL/SQL naming conventions:

  • Application naming conventions
  • Variable naming conventions
  • Stored procedure naming conventions
  • Function naming conventions
  • Package naming conventions

In Oracle database object naming conventions, we might try this:

Check Constraints:  NAME_CHK
Sequences:          NAME_SEQ
Views:              NAME_V
Materialized Views: NAME_MV
Types:              NAME_T
Directories:        NAME_DIR
External Tables:    NAME_EXT
PL/SQL Packages:    NAME_PKG
PL/SQL Procedures:  NAME_PRC
PL/SQL Functions:   NAME_FUN

Let's take a close look at some sample naming conventions.

Application naming conventions

All table/index/column/constraint and PL/SQL object names will use standard prefixes.  Each application area will be identified with a three-character abbreviation, and this abbreviation will be used for the names of all tables, indexes and constraints.  We will not use system-generated constraint or index names.  For example, assume we have these two application areas:

General cross-area objects = GEN
Social Services Department = SSD
Health Services Department = HSD

PL/SQL variable naming conventions

Rampant author Dr. Tim Hall has these suggestions for PL/SQL variable naming conventions:

Package Global Variables: g_variable_name
Local Variables:          l_variable_name
Types:                    t_type_name
Cursors:                  c_cursor_name
Exceptions:               e_exception_name
Input Parameters:         i_parameter_name
Output Parameters:        o_parameter_name
In/Out Parameters:        io_parameter_name

PL/SQL stored procedure naming conventions

Naming conventions for stored procedures and functions are relatively simple.  They begin with the 3-digit application abbreviation, have a functional name, and end with one of these options:

PL/SQL Packages:    NAME_PKG
PL/SQL Procedures:  NAME_PRC
PL/SQL Functions:   NAME_FUN

For example, we might have these names:

GEN_ADD_CUSTOMER_FUN
HSD_PROCESS_ORDER_PRC


   
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