Subject: Database Write the SQL statements for following modification tasks: a) Add constraint to the table BORROWER named borrower_cardno_pk to create the attribute name as the primary key. b) Delete the column city from the table BORROWER c) Modify the column of "phone" in table BORROWER, change the data type into type of VARCHAR2 with length of 20.

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A: The  UNION operation comprises of logical OR while INTERSECT is a logical AND. The EXCEPT(MINUS)…

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A: Find the required procedure in PL/SQL given as below :

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A: The answer for the given question is as follows.

Q: Difference between count (*) and count (col_name). Explain with an example.

A: The above question is solved in step 2 :-

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A: Anonymous block means where it has a PL/SQL programs unit that does not have a name. It has an…

Q: in pl/sql ,use Cursor to get all the records from table  job_history for employee_id 121

A: pl/sql code for the above question is solved in step 2:- assume table job_history has columns…

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Q: Use SQL Developer or Oracle Live SQL to write the appropriate SQL commands as follows: A) FUNCTION:…

A: Answer: Oracle: CREATE FUNCTION Return_region_name(region_id IN NUMBER)RETURN NUMBERIS region_name…

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A: Please refer to the following step for the complete solution of the problem above.

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A: Patient treatment table Patient Id | Event Name | Physician ID1 Radiation 10002 Chemotherapy 20001…

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Q: plz help fix the following use oracle  plz create table volunteer( Vol_ID int NOT NULL, name…

A: Problem: Fixing the given query in Oracle.

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Q: How does the STUFF function help in manipulating string data in SQL?

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Q: n sql, an associate array is a table that is associated with a / an

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A:

Q: SQL queries

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A:

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A: Answer in step 2

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Q: Use SQL Developer or Oracle Live SQL to write the appropriate SQL commands as follows: A) FUNCTION:…

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Q: How does the PATINDEX function help in string pattern matching in SQL?

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Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.