MATLAB DATABASE TOOLBOX RELEASE NOTES Guia do Utilizador descarregar pdf (Página 681)

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versioncolumns

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versioncolumns

Automatically update table columns

Syntax

vl = versioncolumns(dbmeta, 'cata')

vl = versioncolumns(dbmeta, 'cata', 'sch')

vl = versioncolumns(dbmeta, 'cata', 'sch', 'tab')

Description

vl = versioncolumns(dbmeta, 'cata') returns a list of columns that

automatically update when a row value updates in the catalog cata, in the database

whose database metadata object is dbmeta resulting from a database connection object.

vl = versioncolumns(dbmeta, 'cata', 'sch') returns a list of all columns that

automatically update when a row value updates in the schema sch, in the catalog cata,

for the database whose database metadata object is dbmeta resulting from a database

connection object.

vl = versioncolumns(dbmeta, 'cata', 'sch', 'tab') returns a list of

columns that automatically update when a row value updates in the table tab, the

schema sch, in the catalog cata, for the database whose database metadata object is

dbmeta resulting from a database connection object.

Examples

Get a list of which columns automatically update when a row in the table BONUS updates,

in the schema SCOTT, in the catalog orcl, for the database metadata object dbmeta.

vl = versioncolumns(dbmeta,'orcl','SCOTT','BONUS')

vl =

{}

The results are an empty set, indicating that no columns in the database automatically

update when a row value updates.

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