ibm server serial number lookup

For SQL SERVER 2000 and earlier versions, you must use an auto-incrementing column and a temporary table.Copy codeThe Code is as follows:SELECT [AUTOID] = IDENTITY (int, 1, 1), * INTO # temp_table FROM table name;Copy codeThe Code is as follows:SELECT * FROM # temp_table;Since SQL server 2005, SQL SERVER provides a ROW_NUMBER () function, which greatly simplifies

In the "Computer room toll system", some tables need to add their own columns, add a new record automatically add a serial number. Here are two ways to add: One, through T-SQL code. Copy Code code as follows: ALTER TABLE name add column name int IDENTITY (1,1) not NULL Here we use the Identity keyword: indentity (a,b), a B are all positive integers, A is the start, B is the step, indentity

SQL server often has the following problems:After a table uses columns with automatic numbers, tens of thousands of columns have been automatically numbered due to a large amount of data being tested. Now we are using this table, and the test data has been deleted. The legacy problem is that we are entering new data and the number will only be increased, deleted numbers cannot be used. Who knows how to solv