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Built-In FunctionsThe PL/SQL provides a lot of powerful functions to help you to manipulate the data. These built-in functions fall into the categories as shown below:error reportingnumbercharacterdatatype conversiondateobject referencemiscellaneousThe table shows the functions in each and every category. You can use all the functions in the SQL statements except the error-reporting functions SQLCODE and SQLERRM. You can also use all the functions in the procedural statements except the miscellaneous functions like DECODE, DUMP, & VSIZE.The SQL aggregate functions such as AVG, GROUPING, COUNT, STDDEV, MIN, MAX, SUM, and VARIANCE are not built into PL/SQL. However, you can use them in the SQL statements (but not in the procedural statements).
Table: Built-in Functions
Example of Alternative formulation as a table constraint Example: Alternative formulation as a table constraint ALTER TABLE EXAM_MARK ADD CONSTRAINT Must_be_enrolled_to_
Create a Oracle procedure to produce vertical output format when selecting rows from a database table.
LOOP Statements The LOOP statements execute a series of statements at multiple times. The loops enclose the series of statements that is to be repeated. The PL/SQL provides typ
SELECT a.child_fname,a.child_lname,concat(b.parent_title,b.parent_fname), b.parent_lname,b.parent_tphone FROM child a,parent b WHERE a.parent_id=b.parent_id ORDER BY a.child_fnam
Effects of NULL Operator As a general rule-but not a universal one-if NULL is an argument to an invocation of a system-defined read-only operator, then NULL is the result of t
At times, Brewbean's has changed the id number for existing products. In the past, they have had to add a new product row with the new id to the BB_PRODUCT table, modify all the co
1. Create a procedure called TAX_COST_SP to accomplish the tax calculation task. Keep in mind that the state and subtotal values are inputs into the procedure and the procedure is
Example of UNWRAP Operator - SQL Example here shows how unwrapping can be done in longhand in SQL. Example: Unwrapping in SQL Letting CONTACT_INFO_WRAPPED denote the res
THEORY OF BIOGENESIS - This theory explains that the existing living organisms originated from pre-existing living beings not from non living entities. This concept of or
Loop Labels Like the PL/SQL blocks, loops can also be labeled. The label, an undeclared identifier enclosed by double angle brackets, should appear at the beginning of the LOOP
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