08-13-2002
query formatted
Hi,
I think i did not state my query properly.This is the actual scenario....
Consider that there are two files. Each file contains data stored in a table in a database. Assume that the respective tables have primary key defined on atleast two columns. Is it possible to join the two files on these primary key columns?
with thanks in advance,
subra.
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LEARN ABOUT PHP
db2_foreign_keys
DB2_FOREIGN_KEYS(3) 1 DB2_FOREIGN_KEYS(3)
db2_foreign_keys - Returns a result set listing the foreign keys for a table
SYNOPSIS
resource db2_foreign_keys (resource $connection, string $qualifier, string $schema, string $table-name)
DESCRIPTION
Returns a result set listing the foreign keys for a table.
PARAMETERS
o $connection
- A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
o $qualifier
- A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass NULL or an empty string.
o $schema
- The schema which contains the tables. If $schema is NULL, db2_foreign_keys(3) matches the schema for the current connection.
o $table-name
- The name of the table.
RETURN VALUES
Returns a statement resource with a result set containing rows describing the foreign keys for the specified table. The result set is com-
posed of the following columns:
+--------------+---------------------------------------------------+
| Column name | |
| | |
| | Description |
| | |
+--------------+---------------------------------------------------+
| PKTABLE_CAT | |
| | |
| | Name of the catalog for the table containing the |
| | primary key. The value is NULL if this table does |
| | not have catalogs. |
| | |
|PKTABLE_SCHEM | |
| | |
| | Name of the schema for the table containing the |
| | primary key. |
| | |
|PKTABLE_NAME | |
| | |
| | Name of the table containing the primary key. |
| | |
|PKCOLUMN_NAME | |
| | |
| | Name of the column containing the primary key. |
| | |
| FKTABLE_CAT | |
| | |
| | Name of the catalog for the table containing the |
| | foreign key. The value is NULL if this table does |
| | not have catalogs. |
| | |
|FKTABLE_SCHEM | |
| | |
| | Name of the schema for the table containing the |
| | foreign key. |
| | |
|FKTABLE_NAME | |
| | |
| | Name of the table containing the foreign key. |
| | |
|FKCOLUMN_NAME | |
| | |
| | Name of the column containing the foreign key. |
| | |
| KEY_SEQ | |
| | |
| | 1-indexed position of the column in the key. |
| | |
| UPDATE_RULE | |
| | |
| | Integer value representing the action applied to |
| | the foreign key when the SQL operation is UPDATE. |
| | |
| DELETE_RULE | |
| | |
| | Integer value representing the action applied to |
| | the foreign key when the SQL operation is DELETE. |
| | |
| FK_NAME | |
| | |
| | The name of the foreign key. |
| | |
| PK_NAME | |
| | |
| | The name of the primary key. |
| | |
|DEFERRABILITY | |
| | |
| | An integer value representing whether the for- |
| | eign key deferrability is SQL_INITIALLY_DEFERRED, |
| | SQL_INITIALLY_IMMEDIATE, or SQL_NOT_DEFERRABLE. |
| | |
+--------------+---------------------------------------------------+
SEE ALSO
db2_column_privileges(3), db2_columns(3), db2_primary_keys(3), db2_procedure_columns(3), db2_procedures(3), db2_special_columns(3),
db2_statistics(3), db2_table_privileges(3), db2_tables(3).
PHP Documentation Group DB2_FOREIGN_KEYS(3)