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And then, create the referential triggered actions (ie., ON DELETE and ON UPDATE clauses for each referential integrity constraints with the one of the 3 possible action choices. SET NULL. CASCADE, SET DEFAULT, for each clause). Populate, using SQL, the STUDENT_GRADE relational DB with the following data (in figure 2.1). Write using SQL DML (the SQL query sublanguage), the following queries for the And then, create the referential triggered actions (ie., ON DELETE and ON UPDATE clauses for each referential integrity constraints with the one of the 3 possible action choices. SET NULL. CASCADE, SET DEFAULT, for each clause). Populate, using SQL, the STUDENT_GRADE relational DB with the following data (in figure 2.1). Write using SQL DML (the SQL query sublanguage), the following queries for the