15. Use Transact-SQL and Enterprise Manager to manage data tablesModifying a data table with a T-SQLUse Enterprise Manager to modify data tablesImpact of modifying a data tableDelete A data tableSummaryIn Chapter 10th, you have learned how to create
stored procedure authoring experience and optimization measures One, suitable for the reader object: Database development programmer, database of a lot of data, involving the SP (stored procedure) optimization of project developers, the database has
MS SQL Server Query optimization methodThere are many reasons for the slow speed of queries, which are common1, no indexes, or no indexes (this is the most common problem with query slowness, is the flaw in programming)2, I/o throughput is small,
Compare SQL Server, Oracle, and DB2
I. Openness:
SQL ServerIt can only run on windows without any openness. The stability of the operating system is very important to the database.The Windows9x series products focus on desktop applications,
SQL queries and SQL functions This chapter aims Understanding Oracle Data TypesUnderstanding Data Definition Languages and data manipulation languagesUnderstanding Transaction Control Languages and Data Control languagesMastering SQL Operators
For ease of management, LOCALDB provides a command-line-based database management tool, SqlLocalDB.exe. Here is the path to the SqlLocalDB.exe:
%ProgramFiles%\Microsoft SQL Server\110\tools\binn
You can also find an EXE file by using
Server
The first thing to note is that the content of this article is not how to adjust SQL Server query performance (to write a book about this), but how to use set STATISTICS IO and set STATISTICS in the tuning of SQL Server query performance Time
Students with MySQL experience may encounter SQL slow query scenarios in the actual project, some scenarios are easy to locate the problem (such as a single table operation with slow query SQL, carefully check SQL statements are usually easy to
optimization | statement | execution
5th. Oracle's execution planbackground knowledge: To better carry out the following, we must understand some conceptual terms: Sharing SQL statementsIn order not to parse the same SQL statement repeatedly
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