Tryag File Manager

//usr/share/doc/unixODBC-2.2.11/doc/Drivers/txt/SupportedSyntax.html

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unixODBC - Text File Driver - Supported
Syntax
 
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Supported SQL Syntax
This ODBC driver is limited in its support
of SQL by the sqp library. But, in fact, this driver may be limited even
more. So your best indication of supported SQL is to simply try the SQL
(i.e. in isql) before commiting yourself to it. The idea is that any supported
SQL in this driver will be availible in other drivers/data sources. So
this driver may be considered the "lowest common denominator".
Case Sensitivity
sqp is case insensitive. This is inherited
by this driver. However; this driver is often case sensitive when working
with table names because they may map directly to file names.
Supported Syntax
Here are some SQL syntax examples which
are known to work;
- CREATE TABLE -
CREATE TABLE TableName ( Col1 VARCHAR(100),
Col2 VARCHAR(100) )
 &nbsp;
<blockquote>Note:
The only column data type supported is
VARCHAR and the length is always the default length compiled into the driver
(i.e. 4096). So the length specified is ignored. The reason for this is
simple; the <a href="FileFormats.html">table file format </a>only contains
column names and data. This may be resolved with a catalog file in the
future.</blockquote>

- DROP TABLE -
DROP TABLE TableName
 &nbsp;
<blockquote>Note:
This does an rm on the table file. This
means that it will be gone forever.</blockquote>

- SELECT -
SELECT * FROM TableName
 SELECT Col1, Col2, Col3 FROM TableName
 SELECT * FROM TableName WHERE Col1 = 'value'
AND Col2 >= 'value'
 SELECT * FROM TableName ORDER BY Col1,
Col2
<blockquote>Note:
1. You can only AND two expressions (no
OR).
 2. A column name must be on the left and
a string must be on the right of each expression.
 3. You can not do table joins.
 4. Aggregating is not supported.
 5. DISTINCT is not supported.</blockquote>

- INSERT -
INSERT INTO TableName VALUES ( 'value1',
'value2' )
 &nbsp;
<blockquote>Note:
Specifying specific columns such as (col1,co2)
VALUES&nbsp;('val1','val2') is not supported.</blockquote>

- DELETE -
DELETE TableName
 DELETE TableName WHERE Col1 &lt;= 'value1'
AND Col2 > 'value2'
 &nbsp;
 &nbsp;
- UPDATE -
UPDATE TableName SET Col1 = 'value1', Col2
= 'value2' WHERE Col1 > 'value1'
 &nbsp;

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