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Top Forums Web Development mysql query for multiple columns from multiple tables in a DB Post 302537017 by Corona688 on Wednesday 6th of July 2011 11:42:40 PM
Old 07-07-2011
It just smushes them together indiscriminately because, when two tables have nothing to do with each other, it's got no way to know which rows are relevant and which aren't. The rows aren't strictly guaranteed to be in any particular order; to be consistent it has to consider all possibilities.

Or do the tables have anything in common you'd like to match on?
 

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DB2_TABLES(3)								 1							     DB2_TABLES(3)

db2_tables - Returns a result set listing the tables and associated metadata in a database

SYNOPSIS
resource db2_tables (resource $connection, [string $qualifier], [string $schema], [string $table-name], [string $table-type]) DESCRIPTION
Returns a result set listing the tables and associated metadata in a database. 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. This parameter accepts a search pattern containing _ and % as wildcards. o $table-name - The name of the table. This parameter accepts a search pattern containing _ and % as wildcards. o $table-type - A list of comma-delimited table type identifiers. To match all table types, pass NULL or an empty string. Valid table type iden- tifiers include: ALIAS, HIERARCHY TABLE, INOPERATIVE VIEW, NICKNAME, MATERIALIZED QUERY TABLE, SYSTEM TABLE, TABLE, TYPED TABLE, TYPED VIEW, and VIEW. RETURN VALUES
Returns a statement resource with a result set containing rows describing the tables that match the specified parameters. The rows are composed of the following columns: +------------+---------------------------------------------------+ |Column name | | | | | | | Description | | | | +------------+---------------------------------------------------+ | TABLE_CAT | | | | | | | The catalog that contains the table. The value is | | | NULL if this table does not have catalogs. | | | | |TABLE_SCHEM | | | | | | | Name of the schema that contains the table. | | | | |TABLE_NAME | | | | | | | Name of the table. | | | | |TABLE_TYPE | | | | | | | Table type identifier for the table. | | | | | REMARKS | | | | | | | Description of the table. | | | | +------------+---------------------------------------------------+ SEE ALSO
db2_column_privileges(3), db2_columns(3), db2_foreign_keys(3), db2_primary_keys(3), db2_procedure_columns(3), db2_procedures(3), db2_spe- cial_columns(3), db2_statistics(3), db2_table_privileges(3). PHP Documentation Group DB2_TABLES(3)
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