Oracle certification practice

1Z0-909 Practice Questions

Try 10 free 1Z0-909 exam-style questions for Oracle 1Z0-909 certification exam. Check each answer and review the explanation and source references.

Exam code
1Z0-909
Provider
Oracle
Free questions
10
Full set
65 questions
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Examine this statement which executes successfully: Oracle 1Z0-909 question The table is populated with a range of values including jobs for Robert, John, and Katie. Now, examine this statement and output: Oracle 1Z0-909 question Why is an empty result set returned?
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Examine these statements issued from Session 1 which execute successfully: Oracle 1Z0-909 question Now, examine these statements issued from Session 2 which execute successfully: Session 2> BEGIN; UPDATE band SET song=CONCAT ("Here Comes the ", song) WHERE song LIKE ' %Sun ; Which two are true?
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Examine these commands which execute successfully: mYsql> CREATE TABLE income (acct_num INT, amount DECIMAL(10,2)); mysql> CREATE TRIGGER subtotal BEFORE INSERT ON income FOR EACH ROW SET @subtotal = ©subtotal + NEW.amount; Which is true for the income table?
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Examine this statement which executes successfully: CREATE TABLE 'fshop’ ('product' JSON DEFAULT NULL ) ENGINE=InnoDB; Now, examine a json value contained in the table: {"name" : "orange", "varieties" : [{"VarietyName":"Clementine", "Origin" : ["PA", "BU"] }, {"VarietyName": "tangerine", "Origin" : ["CH","JP"]>]> Which will cause documents to be indexed over the 'name' key?
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Which two statements are true about aggregate functions?
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Examine these statement which execute successfully: Oracle 1Z0-909 question Now, examine the statements executed in the mysqi command-line client: Oracle 1Z0-909 question What is true? A) Oracle 1Z0-909 question B) Oracle 1Z0-909 question C) Oracle 1Z0-909 question D) Oracle 1Z0-909 question
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Examine the appointments table definition which contains one million rows: Oracle 1Z0-909 question Now, examine this statement which executes successfully: Oracle 1Z0-909 question Which statement will improve query performance?
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The variables c and d are declared as integer types. Examine these initialization statements with placeholder value , which execute successfully: Now, examine this loop which executes successfully: Oracle 1Z0-909 question Which loop results in the same value of d for all valid values of ? A) Oracle 1Z0-909 question B) Oracle 1Z0-909 question C) Oracle 1Z0-909 question D) Oracle 1Z0-909 question
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The meeting table stores meeting schedules with participants from five continents. The participants' details are stored in another table. Oracle 1Z0-909 question You need to adjust the start_time and duration columns for optimal storage. What datatype changes would achieve this?
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Your session has sqi_mode set to default. Examine this statement which executes successfully: Oracle 1Z0-909 question Now examine this statement: Oracle 1Z0-909 question Which two changes are required to the insert statement so that it inserts the correct data? • std_id = 10301 • firstname = Mary • lastname = O'Hagen • birthdate = November 26, 1997 • reg_date = the current date
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