The document does not give the actual questions for the SQL questions only the answers and without the question you can't even understand what the syntax is answering
WGU D427 DATA MANAGEMENT APPLICATIONS OA EXAM LATEST 2024 ACTUAL 150 QUESTIONS WITH DETAILED ANSWERS /A+ GRADE ASSURED What are the two ways of using the LIKE command? - ...ANSWER... A% - The "%" means that any string of characters can follow afterwards. The percent sign represents zero or more arbitrary regular characters A_ - The _ means that there will be exac tly one letter following the A. The underscore represents a single arbitrary regular character. The default order for ORDER BY is ascending. How can you make it descending order? - ...ANSWER... The clause can include the term ASC at the end to make ascendi ng explicit or it can include DESC for descending order. Command to use AVG/SUM/MIN/MAX/COUNT aggregate functions? - ...ANSWER... SELECT AVG/SUM/MIN/MAX/COUNT(Column_Name) FROM SALES WHERE Name = 'Matt'; There are two specifications to make in the SELECT statement to make a join work. - ...ANSWER... o One is that the tables to be joined must be listed in the FROM clause. o Two is that the join attributes in the tables being joined must be declared and match ed to each other in the WHERE clause. Example of JOIN CAUSE. - ...ANSWER...SELECT SPNAME FROM SALESPERSON, CUSTOMER WHERE SALESPERSON.SPNUM=CUSTOMER.SPNUM In 1970, Dr. _________ of IBM published in Communications of the ACM a paper entitled "A Relational Model of Data for Large Shared Data Banks." This paper marked the beginning of the field of relational databases. - ...ANSWER... Dr. CODD Commands to create and drop a table? - ...ANSWER... CREATE TABLE DROP TABLE The CREATE TABLE command lets you define constraints in two different places: - ...ANSWER... - When you create the column definition (known as a column constraint). - When you use the CONSTRAINT keyword (known as a table constraint). You can exclude rows with other types of conditions by using t he ______ operator. - ...ANSWER... NOT WHERE Location NOT IN ('WV', TN' 'CA'); WHERE Total NOT Between '1000', 2000'; WHERE Name NOT LIKE 'Ma%'; The _____ command tells the database system which database you're going to be using for the upcoming command s. - ...ANSWER... USE USE MainDatabase You can use the _______ statement to provide specified information about a database. - ...ANSWER... SHOW SHOW DATABASES - lists all databases in the database system instance. SHOW TABLES - lists all tables in the default database. SHOW COLUMNS FROM TableName - lists all columns in the TableName table of the default database. SHOW CREATE TABLE TableName - shows the CREATE TABLE statement for the TableName table of the default da tabase. The ALTAR Table adds, deletes, or modifies columns. What is the syntax for each of these? - ...ANSWER... ALTAR TABLE TableName
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