SYSCS_UTIL.SYSCS_IMPORT_DATA system procedure

Derby issues a COMMIT or a ROLLBACK statement after each import and export procedure is run (a COMMIT if the procedure completes successfully, a ROLLBACK if it fails). For this reason, you should issue either a COMMIT or ROLLBACK statement to complete all transactions and release all table-level locks before you invoke an import or export procedure.

For more information on using this procedure, see the section "Importing and exporting data" in the Derby Server and Administration Guide.

Syntax

SYSCS_UTIL.SYSCS_IMPORT_DATA (IN SCHEMANAME VARCHAR(128),
IN TABLENAME VARCHAR(128), IN INSERTCOLUMNS VARCHAR(32672),
IN COLUMNINDEXES VARCHAR(32672), IN FILENAME VARCHAR(32672),
IN COLUMNDELIMITER CHAR(1), IN CHARACTERDELIMITER CHAR(1),
IN CODESET VARCHAR(128), IN REPLACE SMALLINT)

No result is returned from the procedure.

SCHEMANAME

An input argument of type VARCHAR(128) that specifies the schema of the table. Passing a NULL value will use the default schema name.

TABLENAME

An input argument of type VARCHAR(128) that specifies the table name of the table into which the data is to be imported. This table cannot be a system table or a declared temporary table. Passing a null will result in an error.

INSERTCOLUMNS

An input argument of type VARCHAR(32672) that specifies the column names (separated by commas) of the table into which the data is to be imported. Passing a NULL value will import the data into all of the columns of the table.

COLUMNINDEXES

An input argument of type VARCHAR(32672) that specifies the indexes (numbered from 1 and separated by commas) of the input data fields to be imported. Passing a NULL value will use all of the input data fields in the file.

FILENAME

An input argument of type VARCHAR(32672) that specifies the file that contains the data to be imported. If you do not specify a path, the current working directory is used. Passing a NULL value will result in an error.

COLUMNDELIMITER

An input argument of type CHAR(1) that specifies a column delimiter. The specified character is used in place of a comma to signal the end of a column. Passing a NULL value will use the default value; the default value is a comma (,).

CHARACTERDELIMITER

An input argument of type CHAR(1) that specifies a character delimiter. The specified character is used in place of double quotation marks to enclose a character string. Passing a NULL value will use the default value; the default value is a double quotation mark (").

CODESET

An input argument of type VARCHAR(128) that specifies the code set of the data in the input file. The name of the code set should be one of the Java-supported character encodings. Data is converted from the specified code set to the database code set (utf-8). Passing a NULL value will interpret the data file in the same code set as the JVM in which it is being executed.

REPLACE

A input argument of type SMALLINT. A non-zero value will run in REPLACE mode, while a value of zero will run in INSERT mode. REPLACE mode deletes all existing data from the table by truncating the data object, and inserts the imported data. The table definition and the index definitions are not changed. You can only use the REPLACE mode if the table exists. INSERT mode adds the imported data to the table without changing the existing table data. Passing a NULL will result in an error.

If you create a schema, table, or column name as a non-delimited identifier, you must pass the name to the import procedure using all uppercase characters. If you created a schema, table, or column name as a delimited identifier, you must pass the name to the import procedure using the same case that was used when it was created.

Execute privileges

If authentication and SQL authorization are both enabled, only the database owner has execute privileges on this procedure by default. See "Enabling user authentication" and "Setting the SQL standard authorization mode" in the Derby Developer's Guide for more information. The database owner can grant access to other users. The user must also have INSERT privileges on the table.

Example

CALL SYSCS_UTIL.SYSCS_IMPORT_DATA
    (NULL, 'STAFF', null, '1,3,4', 'data.del', null, null, null,0)