Difference between revisions of "SYSBESTROWIDENTIFIER"

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=SYSBESTROWIDENTIFIER=
 
 
 
==Class==
 
SQL Applications
 
 
 
 
==Purpose==
 
==Purpose==
 
Description of a table’s optimal set of columns that uniquely identifies a row
 
Description of a table’s optimal set of columns that uniquely identifies a row
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==See Also==
 
==See Also==
[[DATA TYPES]], [[SQL SELECT|SELECT]], [[SYSTEM TABLES]]
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[[SQL Data Types|DATA TYPES]], [[SQL SELECT|SELECT]], [[SQL System Tables|SYSTEM TABLES]]
  
  
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==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
EXEC SQL
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SELECT column_name FROM sysbestrowidentifier
SELECT column_name
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FROM sysbestrowidentifier;
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</code>
 
</code>
  
  
 
==Products==
 
==Products==
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
+
Recital, Recital Server
 
[[Category:Documentation]]
 
[[Category:Documentation]]
 
[[Category:SQL]]
 
[[Category:SQL]]
 
[[Category:System Tables]]
 
[[Category:System Tables]]

Latest revision as of 16:13, 22 December 2009

Purpose

Description of a table’s optimal set of columns that uniquely identifies a row


See Also

DATA TYPES, SELECT, SYSTEM TABLES


Description

System Tables are system defined read-only tables. You can query these tables using the SELECT statement.


Column Data Type Width Description
SCOPE N 1 Actual scope of result
COLUMN_NAME C 30 Column name
DATA_TYPE N 2 SQL data type
TYPE_NAME C 30 Data source dependent type name
COLUMN_SIZE N 3 Precision
BUFFER_LENGTH N 1 Reserved
DECIMAL_DIGITS N 2 Scale
PSEUDO_COLUMN N 1 Is this a pseudo column?


Example

SELECT column_name FROM sysbestrowidentifier


Products

Recital, Recital Server