sql identity

First, backgroundThe ID field in table A in the SQL Server database is defined as: [ID] [int] IDENTITY, as the data grows, the ID value is close to 2147483647 (the value range for int is:-2 147 483 648 to 2 147 483 647). , although the old data has

SQL Server 2000 has three similar functions: scope_identity, ident_current, and @ identity. Both return values inserted into the identity column.Nbsp; ident_current returns the final id value generated for any session and a specific table in any

@ @IDENTITY (Transact-SQL) returns the last inserted identity value of the system function.Note After an INSERT, SELECT into, or bulk copy statement is complete, the @ @IDENTITY contains the last identity value generated by the statement. If the

I. Definition and characteristics of the identity columnThe identity column in SQL Server is also called the identifier column, which is also known as the self-increment column.This type of column has the following three characteristics :1. The data

Original: Use SQL statement to create a modified SQL Server identity column (that is, autogrow column)I. Definition and characteristics of the identity columnThe identity column in SQL Server is also called the identifier column, which is also known

I. Definition and characteristics of the identity columnThe identity column in SQL Server is also called the identifier column, which is also known as the self-increment column.This type of column has the following three characteristics:1. The data

definition of identity column and features the identity column in SQL Server is also called the identifier column, which is also called self-increment. This type of column has the following three characteristics:1, the data type of the column is a

@ Identity (TRANSACT-SQL) returns the system function of the last inserted Identifier value. Note: After an insert, select into, or large-capacity copy statement is completed, @ identity contains the last Identifier value generated by the statement.

Source: The difference between @ @IDENTITY and @ @ROWCOUNT in SQL Drip 31-sql statementdifference between @ @IDENTITY and @ @ROWCOUNT in SQL statementsAfter an INSERT, SELECT into, or bulk copy statement is complete, the @ @IDENTITY contains the

Server Informal discussion on identity columns in SQL Server (i) I. Definition and characteristics of the identity column The identity column in SQL Server, also known as an identifier column, is customarily called a self-added column. The column