AND and OR Operator in Sql Server
And & Or:- These Operators are used to further filter the recordset return by SQL queries when more than one conditions...
2014-08-13
560 reads
Vivek's SQL Notes
SUM() function in SQL Server
Sum():- This function is used to get the sum of values of the specified numeric column.
Syntax:-
Select Sum (column_name) from tablename
Example:-...
2014-08-12
711 reads
Round() function in SQL Server
Round():-This function is used to round a numeric field to the number of decimals specified.
Syntax:-
ROUND ( numeric_expression , length [ ,function ]
numeric_expression...
2014-08-12
859 reads
Except command in SQL Server
This function returns the distinct values from the left query that are not also found on the right query. For...
2014-08-12
775 reads
Like() function in SQL Server
Like:- This operator is used in a WHERE clause to search for a specific pattern in the values of the...
2014-08-11
420 reads
Best practices for Database Programming
1. All the tables in the database have properly defined relationship using primary keys and foreign keys .
2. Indexes should...
2014-08-11
2,286 reads
Between function in SQL Server
This function is used to select the values within a specified range. These values can be of Int type or...
2014-08-11
345 reads
LEFT() function in SQL Server
Left():- This function returns the specified number of characters from the left part of the given character string.
Syntax:-
Select LEFT ( character_expression...
2014-08-11
951 reads
RIGHT() function in SQL Server
Right():- This function returns the specified number of characters from the Right part of the given character string.
Syntax:-
Select RIGHT ( character_expression...
2014-08-11
770 reads
Intersection command in SQL Server
This function is used to returns distinct values that are returned by both the query on the left and right...
2014-08-11
1,074 reads
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Question of the Day
Fun with JSON I
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers