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Python Regex: The 5 Exclusive Examples

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 Regular expressions (regex) are powerful tools for pattern matching and text manipulation in Python. Here are five Python regex examples with explanations: 01 Matching a Simple Pattern import re text = "Hello, World!" pattern = r"Hello" result = re.search(pattern, text) if result:     print("Pattern found:", result.group()) Output: Output: Pattern found: Hello This example searches for the pattern "Hello" in the text and prints it when found. 02 Matching Multiple Patterns import re text = "The quick brown fox jumps over the lazy dog." patterns = [r"fox", r"dog"] for pattern in patterns:     if re.search(pattern, text):         print(f"Pattern '{pattern}' found.") Output: Pattern 'fox' found. Pattern 'dog' found. It searches for both "fox" and "dog" patterns in the text and prints when they are found. 03 Matching Any Digit   import re text = "The price of the
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The Exclusive Way to Declare Variables in Oracle Procedure

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Declare record type variables in PLSQL

There are four data types in PLSQL. Those are Numeric, Char, Boolean, and Date/Time. Each data type and its features are demonstrated. And explained how to declare variables in PLSQL procedure.

Data types

Here are the four popular data types in PLSQL.

1. Numeric


DEC, DECIMAL, and NUMERIC are used to declare fixed-point numbers with a precision of a maximum of 38 decimal digits. INTEGER, INT, and SMALLINT declare integers with a maximum precision of 38 digits.

2. Char


Char and Varchar data types support storing data of 1 t0 2000 bytes. The VARCHAR2 supports 1 to 4000 bytes of data. The VARCHAR and VARCHAR2 release the unused space in memory,

 3. Date/Time


The range for the Date is from 01-Jan-4712 BC to 31-DEC-9999. It stores the data in date format DD-MON-YYYY. The value is written in single quotes.

4. Boolean


BOOLEAN datatype stores logical values and can be either TRUE or FALSE.

Declare variables


The Declare block in PL/SQL is reserved for variable declaration. The code between begin and end blocks will participate in the execution.


PL/SQL variable-declaration


DECLARE

A NUMBER(4,1) := 11.2; B PLS_INTEGER:=78; C NUMBER(2) :=11; D CHAR(1) :='P'; E varchar (4):='GOOD'; V1 CHAR (1):='T'; D1 DATE:='01-01-2020'; -- Displays current date D2 DATE:=SYSDATE;
BEGIN

Dbms_output.put_line('A:'||' '|| A ); Dbms_output.put_line('B:'||' '|| B); Dbms_output.NEW_LINE; Dbms_output.put_line('C:'||' '|| C); Dbms_output.put_line ('D:'||' '|| D); Dbms_output.NEW_LINE; Dbms_output.put_line('D1' ||CHR(9) ||'Today's DATE '); Dbms_output.put_line(D1|| CHR(9) || D2); Dbms_output.put_line ('V1:'||' '|| V1);
END;

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