1929673
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Which of the following is a correctly written SQL Insert statement?
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INSERT table VALUES (value1, value2, value3);
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INSERT INTO table VALUES (value1, value2, value3);
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INSERT INTO database TABLE(table(schema));
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INSERT TABLE INTO database table(schema);
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When writing DELETE statements, it is often a good idea to begin with a SELECT statement, to verify that your are targeting the correct data for deletion.
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- True
- False
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C.R.U.D is an acronym for the four basic operations of a database system. What are they?
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Create, Retrieve, Upgrade, Delete
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Collate, Retrieve, Update, Delete
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Create, Recall, Update, Delete
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Create, Retrieve, Update, Delete
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Create, Retrieve, Update, Destroy
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In SQL terminology, what does DML stand for?
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Data Modification Language
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Data Manipulation Language
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Digital Manipulation Language
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Digital Modification Language
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In SQL terminology, What does DDL Stand for?
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Digital Definition Language
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Data Detention Language
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Digital Determination Language
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Data Definition Language
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SQL code that can be categorized as DML is used primarily for:
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Adding, querying, manipulating and deleting data from tables and data sets.
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Defining tables, indexes, and data relationships.
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Storing data in tables, indexes, and primary keys.
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Inserting data relationships into indexes, tables, and primary keys.
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SQL code that can be categorized as DDL is used primarily for:
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Inserting data relationships into indexes, tables, and primary keys.
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Adding, querying, manipulating and deleting data from tables and data sets.
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Defining tables, indexes, and data relationships.
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Storing data in tables, indexes, and primary keys.
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Which answer most completely and correctly describes what this SQL statement will do?
SELECT Name, LifeExpectancy AS 'Life Expectancy' FROM Country;
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Return all rows from the Name and LifeExpectancy columns in the country table.
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Return all rows from the Name and LifeExpectancy columns in the country table, renaming the column header displaying the LifeExpectancy column's results to 'Life Expectancy'.
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Return all rows from the Name and LifeExpectancy columns in the country table where the phrase 'Life Expectancy' is found in the name column.
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This statement is incorrectly written. It will produce an error.
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Which answer most completely and correctly describes what the following SQL statement will do?
SELECT "Hi, my name is Jimmy.";
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This statement is not valid, it will return an error.
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This will return a single row with the value "Hi, my name is Jimmy.".
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This will return a single row with the header <String> and the value "Hi, my name is Jimmy.".
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This will return the value "Hi, my name is Jimmy." in a column with the header name "Hi, my name is Jimmy."
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Which answer most completely and correctly describes what the following SQL statement will do?
SELECT FROM inventory WHERE item_desc like '%shoe%';
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This will return all rows from the customer table where the item_desc column contains the sub-string 'shoe'.
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This statement is written incorrectly, it will return an error.
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This will return all rows from the customer table where the item_desc column begins with the sub-string 'shoe'.
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This will return all rows from the customer table where the item_desc column ends with the sub-string 'shoe'.
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This SQL statement will return all rows from the 'Countries' table:
SELECT * FROM Countries;
Which of the following will return the number of rows in the Countries table?
1. SELECT * (COUNT) FROM Countries;
2. SELECT COUNT FROM Countries;
3. SELECT COUNT(*) FROM Countries;
4. All of the above.
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1
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2
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3
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4
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True or False: Given a database with table named test that has columns named 'id' and 'value' This is a valid SQL statement:
SELECT * FROM test WHERE value = NULL;
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- True
- False
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In MySql, this create table statement is not valid. Why?
CREATE TABLE test (
a INTEGER AUTO_INCREMENT,
b TEXT DEFAULT 'nothing',
c TEXT NOT NULL
);
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The semicolon is unnecessary.
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The AUTO_INCREMENT keyword is misused.
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There is a comma missing after the last column declaration.
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The DEFAULT keyword is misused.
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In MySQL, which of these statements will successfully create a table named simpleTest with an id field set as an auto-increment integer with a primary key constraint?
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CREATE TABLE simpleTest( id INTEGER AUTO_INCREMENT PRIMARY KEY, fName TEXT NOT NULL, lName TEXT NOT NULL );
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CREATE TABLE simpleTest( id INTEGER AUTO_INCREMENT, fName TEXT NOT NULL, lName TEXT NOT NULL, PRIMARY KEY(id) );
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Neither A nor B is correct.
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Both A and B are correct.
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The term "Query" is often used to refer to what kind of SQL statements?
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CREATE
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SELECT
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INSERT
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ALTER
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