Kursus
Meningkatkan Kinerja Kueri di SQL Server
MenengahTingkat Keterampilan
Diperbarui 02/2023Mulai Kursus Gratis
Termasuk denganPremium or Team
SQLProgramming4 jam16 videos58 Latihan4,450 XP24,585Bukti Prestasi
Buat Akun Gratis Anda
atau
Dengan melanjutkan, Anda menerima Ketentuan Penggunaan kami, Kebijakan Privasi kami dan bahwa data Anda disimpan di Amerika Serikat.Dipercaya oleh para pelajar di ribuan perusahaan
Pelatihan untuk 2 orang atau lebih?
Coba DataCamp for BusinessDeskripsi Kursus
Persyaratan
Intermediate SQL Server1
Introduction, Review and The Order of Things
In this chapter, students will learn how SQL code formatting, commenting, and aliasing is used to make queries easy to read and understand. Students will also be introduced to query processing order in the database versus the order of the SQL syntax in a query.
2
Filtering and Data Interrogation
This chapter introduces filtering with WHERE and HAVING and some best practices for how (and how not) to use these keywords. Next, it explains the methods used to interrogate data and the effects these may have on performance. Finally, the chapter goes over the roles of DISTINCT() and UNION in removing duplicates and their potential effects on performance.
3
Sub-queries and presence or absence
This chapter is an introduction to sub-queries and their potential impacts on query performance. It also examines the different methods used to determine if the data in one table is present, or absent, in a related table.
4
Query performance tuning
Students are introduced to how STATISTICS TIME, STATISTICS IO, indexes, and executions plans can be used in SQL Server to help analyze and tune query performance.
Meningkatkan Kinerja Kueri di SQL Server
Kursus Selesai
Memperoleh Surat Keterangan Prestasi
Tambahkan kredensial ini ke profil LinkedIn, resume, atau CV AndaBagikan di media sosial dan dalam penilaian kinerja Anda
Termasuk denganPremium or Team
Daftar SekarangBergabung dengan 19 juta pelajar dan mulai Meningkatkan Kinerja Kueri di SQL Server Hari Ini!
Buat Akun Gratis Anda
atau
Dengan melanjutkan, Anda menerima Ketentuan Penggunaan kami, Kebijakan Privasi kami dan bahwa data Anda disimpan di Amerika Serikat.