DataFlux Data Management Studio 2.6: User Guide

Table Metadata Node

The Table Metadata node extracts metadata for a specified table. This information can be used to identify changes in the corresponding physical table. The properties dialog for this node includes the following elements:

Name - Specifies a name for the node.

Notes - Enables you to open the Notes dialog. You use the dialog to enter optional details or any other relevant information for the input.

Input Table - Enables you to select a database and table from which you are retrieving table metadata. Click Browse to navigate to a table.

The following table displays the metadata information that can be extracted from a selected input table:

Property Description
BUFFER_LENGTH Size in bytes required to store the data.
CHAR_OCTET_LENGTH Maximum length in bytes of a character or binary data type field.
COLUMN_DEF Default value of the field.
COLUMN_NAME Name of the field as listed in the table.
COLUMN_SIZE Physical size of the field.
DATA_TYPE Type of data in the field as defined by the individual database ODBC driver.
DECIMAL_DIGITS For numeric data, the number of decimal places used.
IS_NULLABLE If "NO" the field does not include nulls; if "YES" the field could include nulls.
NULLABLE Displays whether the field allows nulls to be entered.
NUM_PREC_RADIX For numeric data, this will be either 10 or 2. If 10, then COLUMN_SIZE and DECIMAL_DIGITS give the number of digits for the field. If 2, then these two give the number of bits allowed for the field (base 2).
ORDINAL Order of the fields in the table.
ORDINAL_POSITION Ordinal position of the field in the table.
REMARKS Descriptive comments about the field.
SQL_DATA_TYPE Similar to DATA_TYPE but has added codes for date/time and interval types.
SQL_DATETIME_SUB Sub-type code for SQL_DATA_TYPE.
TABLE_CAT Usually the physical location of the database table. Exact usage depends on the database driver.
TABLE_NAME Name of the table as listed in the database.
TABLE_SCHEME Table schema name (for databases that support named schemas).
TYPE_NAME Descriptive name of the data type as defined by the individual database ODBC driver.

You can access the following advanced properties by right-clicking the Table Metadata node:

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