t-sql insert select

Stairway to T-sql:beyond the Basics level 9:dynamic T-SQL Codeby Gregory Larsen, 2016/07/29 (first published:2014/07/23)Original link: http://www.sqlservercentral.com/articles/Stairway+Series/113118/The SeriesThis article is part of the series: the

1. View the information for the tableIn the TSQL editor, select a table,Click Alt+f1 to view the table's attribute definitions2, use ALT to BULK INSERT commasUsing the IN clause in the TSQL, in the (value_list) list, there are often many numbers,

1, demand analysisImplement hierarchies in TSQL, such as a data structure, province, city, County, township, village, how to use a table to represent this data structure, and allow is asymmetric, for example, Shanghai is a municipality, there is no

The syntax of plsql is different from that of tsql. For more information, see. The syntax of plsql is different from that of tsql. For more information, see. Insert into testtable (recordnumber, currentdate) values (I, sysdate ); Print ''; Select @

In TSQL, there is a exists clause that indicates that there is a match on any row of data, but how to represent the entire row of data. For example, it means that a student took all courses, which is a classic example of the "match all"

MorningTSQL Statement1. Create a databaseCreate Database test2;2. Deleting a databaseDrop database test2;3. Create a tableCREATE TABLE Ceshi(IDS int Auto_increment primary KEY,UID varchar (20),Name varchar (20),Class varchar (20),Foreign key (Class)

The first part: The TSQL Output keyword has two application scenarios1, as the parameter type of the stored procedure, returns data from the stored procedure2, return the information in the rows affected by the INSERT, UPDATE, Delete, or merge

1. Define variables:DECLARE @ variable name data typeVariable assignment:SET @ variable name = value; SELECT @ variable name = value; (Common)Value printing:SELECT @ variable name print @ variable nameTo perform variable assignment values, the code

TSQL HierarchyID Data Type usageApril 25, 2017 09:47:46Number of readings:The HierarchyID data type is a variable-length system data type. You can use HierarchyID to represent locations in a hierarchy. columns of type HierarchyID do not

As a DBA, you must deal with a variety of tsql code. See the following three examples:   1: parentheses are used in distinct: SELECT DISTINCT (TransactionID),ProductID,TransactionTypeFROM adventureworks.Production.TransactionHistoryArchive The