t sql fundamentals

Tags: migrating local SQL Server database to Windows Azure SQL database via SSMs toolMigrate local SQL Server database to Windows Azure SQL database via the SSMs toolMicrosoft's product updates are getting faster, almost every year there are product updates, today, we mainly introduce how to migrate the local

Tags: Microsoft CTI object Complex problem: Lis use parameter BinThis article belongs to theUnderstand the mysteries of performance-slow in applications, fast in SSMS"seriesNext: Understanding the Mysteries of performance-application slow, SSMs fast (5)--case: How to deal with parameter sniffing We put aside the argument sniffing topic and went back to the original point of concern in this series: Why is the statement slow in the application, but fast in ssms? So far, it's all about the stored p

systemDateDiff (INTERVAL,DATE1,DATE2)--Returns the difference between Date2 and date1 two dates in interval specified mode date2-date1DATEADD (interval,number,date)--The date after number is added in the way specified by intervalDatePart (interval,date)---Returns the integer value corresponding to the specified portion of the date, intervalDatename (interval,date)--Returns the string name corresponding to the specified part of the date, intervalThe setting values for the parameter interval are

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 special features about dynamic settings in SQL Server 2000, which simplify the procedure for setting databases. At the

Sharing the SQL area, private SQL area, and game Benchmark 1. Sharing the SQL area is another way to name the handle of the cursor object in Librarycace and the data of the Child heap. Ii. Concept of private SQL zone is stored in PGA in dedicated server mode. (Review the concept of PGA: PGA is allocated on the server s

Sometimes we do notSQL ServerOr you do not have permission to connectSQL Server,However, we want to view the contents of the backup file. In this case, we can useSQLBak ReaderGadgets. When you cannot restore the database, you can use this tool to view the database version of the backup.BakFile Corruption can also be usedSQL Bak ReaderOpen. UseSQL bakreaderOpenMasterBackup File (for example ): In fact, you can find that the information isRestore filelistonlyAndRestore headeronly

Select from t anywhere, replace "" with a specific field list, and do not return any fields that are not available20, as far as possible to use Varchar/nvarchar instead of Char/nchar, because the first variable long field storage space is small, you can save storage space, and secondly for the query, in a relatively small field search efficiency is obviously higher.21, try to use numeric fields, if only the value of the field is not designed as a character type, which will reduce the performanc

1. View the version of the database SELECT @ @version 2. View the machine operating system parameters of the database EXEC master.. xp_msver 3. View Database Startup Parameters sp_configure 4. View Database Startup time Select CONVERT (varchar, login_time,120) from master. sysprocesses where spid=1 To view the database server name and instance name print ' Server Name ... ...: ' + CONVERT (varchar (), @ @SERVERNAME), ". print ' Instance ....: ' + CONVERT (varchar), @ @SERVICENAME. @).,

Abstract: In the PLSQL development process, the use of SQL and PLSQL can meet most of the requirements, but in some special circumstances, using standard SQL statements or DML statements in PLSQL cannot meet your needs. for example, dynamic table creation or an uncertain operation must be performed dynamically. This requires dynamic SQL. This article describes PL

Tags: jpg pytho width My little partner src tle senior DomesticWrite on behalf of SQL, database SQL generation, SQL write, database SQL programming GenerationMy partner and I graduated from top universities at home and abroad, worked in the first-line Internet enterprises, engaged in advanced development, familiar with

Label:Originally using SQL Server 2000 databases, the DTS tool makes it easy to import and export data between SQL Server and DBF files, and now, after installing SQL Server2005, discovers the SQL Server Import Export Wizard that it provides The data sources in the database are not rich in the original, and the DBF fil

What should I do if SQL Server executes dynamic SQL statements? The following describes the two correct ways for SQL Server to execute dynamic SQL. We hope that you can have a better understanding of SQL Server to execute dynamic SQL