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Database name
Many databases can be created as units of administration and design on one server system. To identify each
database uniquely, each is assigned a unique name (database name) on the server system.
DEFAULT clause
An element of the definition of a column in a table. If the following condition applies, the value defined in the DEFAULT
clause is inserted. The data to be inserted in a column is not specified when a row is inserted in a table using the
INSERT statement. If a DEFAULT clause is not defined for a column, a NULL value is inserted.
DELETE statement
A data manipulation SQL statement used to delete a row from a table.
DISTINCT set function
The DISTINCT set function is a set function for which DISTINCT is specified in the set function argument. Rows
containing the same values are not removed for a DISTINCT set function.
Related term: ALL set function
DS/90 7000 series
A UNIX computer from Fujitsu Limited and PFU Limited that uses the SuperSPARC high-performance RISC
processor.
Dynamic SQL
Dynamic SQL is a function for generating and executing SQL statements when executing an application program. In
general, this function is used by general-purpose package programs.
Embedded exception declaration
An embedded exception declaration specifies the processing to be performed if an exception condition is issued when
an SQL statement is executed in an application program. The WHENEVER statement is used to specify an embedded
exception declaration.
Embedded SQL
SQL statements can be used as embedded SQL statements. Use embedded SQL statements to manipulate data in
application programs written in high-level languages such as C language or COBOL. For example, when COBOL is
used, specify an SQL statement embedded between EXEC SQL and END-EXEC.
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