ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
SQL support in local databases
Supported SQL syntax
The following SQL syntax listings are supported by the Adobe AIR SQL database engine. The listings are divided into
explanations of different statement and clause types, expressions, built-in functions, and operators. The following
topics are covered:
General SQL syntax
Data manipulation statements (SELECT, INSERT, UPDATE, and DELETE)
Data definition statements (CREATE, ALTER, and DROP statements for tables, indices, views, and triggers)
Special statements and clauses
Built-in functions (Aggregate, scalar, and date/time formatting functions)
Operators
Parameters
Unsupported SQL features
Additional SQL features
General SQL syntax
In addition to the specific syntax for various statements and expressions, the following are general rules of SQL syntax:
Case sensitivity SQL statements, including object names, are not case sensitive. Nevertheless, SQL statements are
frequently written with SQL keywords written in uppercase, and this document uses that convention. While SQL
syntax is not case sensitive, literal text values in SQL are case sensitive, and comparison and sorting operations can be
case sensitive, as specified by the collation sequence defined for a column or operation. For more information see
COLLATE.
White space A white-space character (such as space, tab, new line, and so forth) must be used to separate individual
words in an SQL statement. However, white space is optional between words and symbols. The type and quantity of
white-space characters in a SQL statement is not significant. You can use white space, such as indenting and line
breaks, to format your SQL statements for easy readability, without affecting the meaning of the statement.
Data manipulation statements
Data manipulation statements are the most commonly used SQL statements. These statements are used to retrieve,
add, modify, and remove data from database tables. The following data manipulation statements are supported:
SELECT, INSERT, UPDATE, and DELETE.
SELECT
The SELECT statement is used to query the database. The result of a SELECT is zero or more rows of data where each
row has a fixed number of columns. The number of columns in the result is specified by the result column name or
expression list between the SELECT and optional FROM keywords.
Last updated 6/6/2012
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