What is use of ExecuteNonQuery () method?
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What is use of ExecuteNonQuery () method?
ExecuteNonQuery: Use this operation to execute any arbitrary SQL statements in SQL Server if you do not want any result set to be returned. You can use this operation to create database objects or change data in a database by executing UPDATE, INSERT, or DELETE statements.
What does ExecuteNonQuery () method return?
Although the ExecuteNonQuery returns no rows, any output parameters or return values mapped to parameters are populated with data. For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1.
What is ExecuteNonQuery in asp net c#?
ExecuteNonQuery used for executing queries that does not return any data. It is used to execute the sql statements like update, insert, delete etc. ExecuteNonQuery executes the command and returns the number of rows affected. Jan, 2018 20.
Can we use ExecuteNonQuery SELECT statement?
ExecuteNonQuery shouldn’t be used for SELECT statements.
What is difference between ExecuteNonQuery and ExecuteQuery?
ExecuteReader() returns an object that can iterate over the entire result set while only keeping one record in memory at a time. ExecuteNonQuery() does not return data at all: only the number of rows affected by an insert, update, or delete.
What is difference between ExecuteNonQuery and Executequery?
What is difference between ExecuteNonQuery and ExecuteScalar?
Solution 1. ExecuteScalar() only returns the value from the first column of the first row of your query. ExecuteReader() returns an object that can iterate over the entire result set. ExecuteNonQuery() does not return data at all: only the number of rows affected by an insert, update, or delete.
What is the difference between ExecuteReader and ExecuteNonQuery?
ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable ). ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT, etc.).
What is SqlCommand?
A SqlCommand object allows you to specify what type of interaction you want to perform with a database. For example, you can do select, insert, modify, and delete commands on rows of data in a database table.
