35. use SQL query analyzer and SQL profilerUse SQL query AnalyzerUse SQL profilerOptimize T-SQL statementSummaryIn this chapter, we will continue with the description of the pre-stored procedures in Chapter 21st. This chapter describes how to use
Using SQL functions, you can directly calculate the average, total, minimum, maximum, sum, standard deviation, and variance statistics of database data in a query of a SELECT statement. You can also use these SQL functions when using a Recordset
When dbca creates a database, the default value of the processes parameter is 150. Generally, it does not have to worry about the minimum value, but the minimum value is 6 in "2 daydba" and "dbca, it includes several background processes that must
30. Microsoft SQL Server ManagementAutomatic Setting of SQL ServerDatabase Maintenance PlanSummaryUsing appropriate settings and performing routine maintenance tasks in the database is the key to optimizing the server. This chapter describes the
Original: SQL Server connectivity Issue-TCP/IPOriginating From: http://blogs.msdn.com/b/apgcdsd/archive/2012/02/24/ms-sql-server-tcp-ip.aspxBasic principles of how TCP/IP works here's not a waste of saliva. Now this network age, who does not know
Transferred from: http://blog.csdn.net/xys_777/article/details/5711128--group to take the largest and smallest common SQL--Test environmentIf object_id (' TB ') is not null drop table TB;GoCREATE TABLE TB (col1 int,col2 int,Fcount int)INSERT INTO
An overviewTwo-SQL planning baseline Plan Baseline architectureThree-load SQL plan baselinesFour Evolutionary SQL plan baselinesFive important baseline SQL plan propertiesSix-SQL Plan selectionSeven possible SQL plan manageability ScenariosEight SQL
In keeping your servers and data secure from the current complex attacks, SQL Server has everything you need. But before you can effectively use these security features, you need to understand the threats you face and some basic security concepts.
Single-record functions in SQL
1. ASCIIReturns the decimal number corresponding to the specified character;
SQL> select ASCII ('A') A, ASCII ('A') A, ASCII ('0') zero, ASCII ('') space from dual;
A A zero space
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