Evaluate each of the following declarations. Determine which of them are not legal and explain why. a.
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Question:
Evaluate each of the following declarations. Determine which of them are not legal and explain why.
a. DECLARE
v_id NUMBER(4);
b. DECLARE
v_x, v_y, v_z VARCHAR2(10);
c. DECLARE
v_birthdate DATE NOT NULL;
d. DECLARE
v_in_stock BOOLEAN := 1;
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