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SQLite Expressions
SQLite Expressions with history, features, advantages, installation, commands, syntax, datatypes, operators, expressions, databases, table, crud operations, clauses, like, glob, limit, and clause, advance sqlite
SQLite ExpressionsSQLite Expressions are the combination of one or more values, operators and SQL functions. These expressions are used to evaluate a value. SQLite expressions are written in query language and used with SELECT statement. Syntax: SELECT column1, column2, columnN FROM table_name WHERE [CONDITION | EXPRESSION]; There are mainly three types of SQLite expressions: 1) SQLite Boolean ExpressionSQLite Boolean expressions are used to fetch the data on the basis of matching single value. Syntax: SELECT column1, column2, columnN FROM table_name WHERE SINGLE VALUE MATCHTING EXPRESSION; Example: We have an existing table named "STUDENT", having the following data: 
See this simple example of SQLite Boolean expression. SELECT * FROM STUDENT WHERE FEES = 20000; Output: 
2) SQLite Numeric ExpressionsSQLite Numeric expression is used to perform any mathematical operations in the query. Syntax: SELECT numerical_expression as OPERATION_NAME [FROM table_name WHERE CONDITION] ; Example1: SELECT (25 + 15) AS ADDITION; Output: 
Numeric expressions contain several built-in functions like avg(), sum(), count(), etc. These functions are known as aggregate data calculation functions. SELECT COUNT(*) AS "RECORDS" FROM STUDENT; Output: 
3) SQlite Date ExpressionSQlite Date expressions are used to fetch the current system date and time values. Syntax: SELECT CURRENT_TIMESTAMP; SELECT CURRENT_TIMESTAMP; Output: 
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- Learn SQLite Tutorial
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- SQLite Data Types
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