4. The following table resulted from the query SELECT * FROM DBA_FREE_SPACE. TABLE SPACE_ FILE_ID NAME SYSTEM 1 SYSTEM 1 2 3 3 DATA DATA DATA INDEX 4 BLOCK_ID BYTES BLOCKS RELATIVE_FNO 100 250 600 150 350 15 614400 921600 307200 614400 61440 307200 100 150 50 2 112334 100 10 50 Write the SQL statement that will defragment the free space in the DATA tablespace.
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- Assistance with SQL statements Previous code; CREATE TABLE Lab4program_piershed ( code VARCHAR(5) PRIMARY KEY, name VARCHAR(20), tel VARCHAR(20));CREATE TABLE Lab4course_xxxx ( cid INT PRIMARY KEY, name VARCHAR(20), credits INT, mycode VARCHAR(5), FOREIGN KEY (mycode) REFERENCES Lab4program_xxxx(code)); 1. Insert 3 records into your Lab4program_xxxx table. The code should be "CPS", "TECH", "MATH", or "BIO". Please copy/paste your SQL statements with the output message in the text that shows you successfully insert 3 records to your table. 2. Insert 4 records into your Lab4course_xxxx table with at least 2 different mycode. Please copy/paste your SQL statements with the output message in the text that shows you successfully insert 4 records to your table.Draw the ERD rI : ithat is implemented by the following SQL code: CREATE TABLE PROJ_USER USER_ID NUMBER NOT NULL, USER_NAME VARCHAR2(50) NOT NULL, USER_EMAIL VARCHAR2(50) NOT NULL, CONSTRAINT USER_PK PRIMARY KEY (USER_ID) ); CREATE TABLE PROJ_CERTIFIEDUSER USER_ID NUMBER NOT NULL, CUSER_REALNAME VARCHAR2(50) NOT NULL, CUSER_CERTIFICATION VARCHAR2(50) NOT NULL, CONSTRAINT CERTIFIEDUSER_PK PRIMARY KEY (USER_ID), CONSTRAINT CERTIFIEDUSER_FK FOREIGN KEY (USER_ID) REFERENCES PROJ_USER (USER_ID) );fa table in a SQL database has a column of type `VARCHAR(100)", what does the "100" signify? a) The number of records that can be stored in the column. b) The number of unique characters that can be stored in the column. c) The maximum length of a string that can be stored in the column. d) The minimum length of a string that can be stored in the column.
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- sql queries Employees(EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, PHONE_NUMBER, HIRE_DATE,JOB_ID, SALARY, COMMISSION_PCT, MANAGER_ID, DEPARTMENT_ID,DEPARTMENT_NAME)Department(DEPARTMENT_ID, DEPARTMENT_NAME, MANAGER_ID, LOCATION_ID)Location(LOCATION_ID,STREET_ADDRESS,POSTAL_CODE,CITY,STATE_PROVINCE,COUNTRY_ID) Write a query in SQL to display the Entire data of All those employees whoseDEPARTMENT_ID is greater than the DEPARTMENT_ID of all those employees who earn morethan 50,000 per month Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_NAMEof all those departments whose minimum salary is greater than 4000 in ascending order.SQL QUERIES Employees(EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,COMMISSION_PCT,MANAGER_ID,DEPARTMENT_ID)Department(DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID) C: Write a query in SQL to display the HIRE_DATE of every employee in following format.Format: 11-july-2019SQL QUERIES Employees(EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,COMMISSION_PCT,MANAGER_ID,DEPARTMENT_ID)Department(DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID)A: Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_ID of all thosedepartments whose minimum salary is greater than 4000 in ascending order.
- SQL QUERIES Employees(EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,COMMISSION_PCT,MANAGER_ID,DEPARTMENT_ID)Department(DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID)A: Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_ID of all thosedepartments whose minimum salary is greater than 4000 in ascending order. B: Write a Query in SQL to display characters only from 2 to 5 of “Last_Name” from Employees table. C: Write a query in SQL to display the HIRE_DATE of every employee in following format.Format: 11-july-2019select * from cast where cast_id=162652763; Use explain to display the query plan without creating any index. Now create an index to speed up the query. Use explain and timer to show the improvement.introduction to databases Write PL/SQL code to create a function called best_ranked_post to list out all post which gets more than 50 likes.