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Conversion of DEFAULT values from IBM DB2 to Oracle

Oracle interprets DEFAULT '' as NULL whereas such syntax is interpreted as an empty string in IBM DB2. In order to insert an empty string as the default in Oracle, the syntax must be like DEFAULT ' ' (with the space between single quotes).

SQLWays converts DEFAULT '' from IBM DB2 to Oracle as DEFAULT ' ':

TABLE 100. Conversion of DEFAULT values from IBM DB2 to Oracle

IBM DB2	Oracle
CREATE TABLE table_name1 ( col1 varchar(10) default `' )	CREATE TABLE table_name1 ( col1 varchar2(10) default ` );