db2_primary_keys

(PECL ibm_db2 >= 1.0.0)

db2_primary_keys — Returns a result set listing primary keys for a table

说明

db2_primary_keys(
    resource $connection,
    ?string $qualifier,
    ?string $schema,
    string $table_name
): resource

Returns a result set listing the primary keys for a table.

参数

connection: A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
qualifier: A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass null or an empty string.
schema: The schema which contains the tables. If schema is null, db2_primary_keys() matches the schema for the current connection.
table_name: The name of the table.

返回值

Returns a statement resource with a result set containing rows describing the primary keys for the specified table. The result set is composed of the following columns:

Column name	Description
TABLE_CAT	Name of the catalog for the table containing the primary key. The value is NULL if this table does not have catalogs.
TABLE_SCHEM	Name of the schema for the table containing the primary key.
TABLE_NAME	Name of the table containing the primary key.
COLUMN_NAME	Name of the column containing the primary key.
KEY_SEQ	1-indexed position of the column in the key.
PK_NAME	The name of the primary key.

参见

db2_column_privileges() - Returns a result set listing the columns and associated privileges for a table
db2_columns() - Returns a result set listing the columns and associated metadata for a table
db2_foreign_keys() - Returns a result set listing the foreign keys for a table
db2_procedure_columns() - Returns a result set listing stored procedure parameters
db2_procedures() - Returns a result set listing the stored procedures registered in a database
db2_special_columns() - Returns a result set listing the unique row identifier columns for a table
db2_statistics() - Returns a result set listing the index and statistics for a table
db2_table_privileges() - Returns a result set listing the tables and associated privileges in a database
db2_tables() - Returns a result set listing the tables and associated metadata in a database

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