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• Keep database names short and con
• Keep database names short and concise. DDS, NDS, Stage, and Meta will do. We need to
keep them short because they will be used as prefixes to ETL process names and stored
procedure names.
• Remember to keep the collation of all data warehouse databases the same, preferably
as per the company’s SQL Server installation standard defined by the SQL Server DBA.
Database collation defines how SQL Server handles character and Unicode data, such
as case-sensitivity, sort order, and code page. If they are different, there will be conversion
problems when populating the NDS from the stage and populating the DDS from
the NDS; for example, when trying to do column comparisons for UPSERT, set the server
collation as well in case you need to create a new DDS in the future.
• Consider case sensitivity very carefully. Query results will be different depending on the
case sensitivity.We need to set case according to the user requirements for sorting
order. For the Amadeus Entertainment case study, we will use SQL Server default collation,
SQL_Latin1_General_CP1_CI_AS, so it will be case-insensitive.
• For each database we will create six filegroups, located on six different physical disks on
RAID 5, with one transaction log file located in the designated log disk of RAID 1. Filegroups
are a collection of database files. Set the database default location in the server
property to match this. This is necessary so that when we create a new database (for
example, a new DDS), SQL Server will put the database data and log files in the correct
locations. This is done by right-clicking the SQL Server name in Management Studio
and choosing Properties. Click Database Settings, and modify the default database
locations.
• Arrange the data files to support the previous filegroup arrangement, meaning that
when creating the database, place data files as per the filegroup locations. We have six
physical disks for data, so use them well by spreading the filegroups into different physical
disks. Put the log files of each database on different log disks, as specified in the
previous section. Set the initial size of the data files for six to twelve months of growth
by specifying the initial size correctly when creating the database. Maintain the data
and log files manually; do not rely on autogrowth. If there is a data load operation that
requires more log space than what’s available, the operation will take a long time to
complete because it has to wait until the grow operation completes. Growing a database
by little increments causes a performance problem because of file and disk
fragmentation. We still need to turn on autogrow (with a large increment) but use it
only for emergency measures.
• Based on the estimated database size in the previous section (400 and 300 over two
years), aiming for six months I would set the initial size of the DDS to 100GB with a
growth increment of 25GB and the initial size of the NDS to 75GB with a 15GB growth
increment. The initial sizes for the DDS and the NDS (100 and 75GB) are calculated by
taking the linear proportion of the two-year projection (400GB and 300GB) for six
months. If you have initial load, then add this amount to the initial sizes. For example,
if the initial load is 30GB, then the initial sizes for the DDS and the NDS become 130GB
keep them short because they will be used as prefixes to ETL process names and stored
procedure names.
• Remember to keep the collation of all data warehouse databases the same, preferably
as per the company’s SQL Server installation standard defined by the SQL Server DBA.
Database collation defines how SQL Server handles character and Unicode data, such
as case-sensitivity, sort order, and code page. If they are different, there will be conversion
problems when populating the NDS from the stage and populating the DDS from
the NDS; for example, when trying to do column comparisons for UPSERT, set the server
collation as well in case you need to create a new DDS in the future.
• Consider case sensitivity very carefully. Query results will be different depending on the
case sensitivity.We need to set case according to the user requirements for sorting
order. For the Amadeus Entertainment case study, we will use SQL Server default collation,
SQL_Latin1_General_CP1_CI_AS, so it will be case-insensitive.
• For each database we will create six filegroups, located on six different physical disks on
RAID 5, with one transaction log file located in the designated log disk of RAID 1. Filegroups
are a collection of database files. Set the database default location in the server
property to match this. This is necessary so that when we create a new database (for
example, a new DDS), SQL Server will put the database data and log files in the correct
locations. This is done by right-clicking the SQL Server name in Management Studio
and choosing Properties. Click Database Settings, and modify the default database
locations.
• Arrange the data files to support the previous filegroup arrangement, meaning that
when creating the database, place data files as per the filegroup locations. We have six
physical disks for data, so use them well by spreading the filegroups into different physical
disks. Put the log files of each database on different log disks, as specified in the
previous section. Set the initial size of the data files for six to twelve months of growth
by specifying the initial size correctly when creating the database. Maintain the data
and log files manually; do not rely on autogrowth. If there is a data load operation that
requires more log space than what’s available, the operation will take a long time to
complete because it has to wait until the grow operation completes. Growing a database
by little increments causes a performance problem because of file and disk
fragmentation. We still need to turn on autogrow (with a large increment) but use it
only for emergency measures.
• Based on the estimated database size in the previous section (400 and 300 over two
years), aiming for six months I would set the initial size of the DDS to 100GB with a
growth increment of 25GB and the initial size of the NDS to 75GB with a 15GB growth
increment. The initial sizes for the DDS and the NDS (100 and 75GB) are calculated by
taking the linear proportion of the two-year projection (400GB and 300GB) for six
months. If you have initial load, then add this amount to the initial sizes. For example,
if the initial load is 30GB, then the initial sizes for the DDS and the NDS become 130GB
0/5000
• Menjaga database nama pendek dan ringkas. DDS, NDS, panggung dan Meta akan melakukan. Kita perlumemeliharanya pendek karena mereka akan digunakan sebagai untuk nama proses ETL awalan dan disimpannama prosedur.• Ingat untuk menjaga pemeriksaan semua data gudang database yang sama, sebaiknyasesuai perusahaan SQL instalasi Server standar didefinisikan oleh SQL Server DBA.Database pemeriksaan mendefinisikan bagaimana SQL Server menangani karakter dan Unicode data, sepertisebagai kasus, urutan, dan halaman kode. Jika mereka berbeda, akan ada konversimasalah ketika mempopulasikan NDS dari panggung dan mempopulasikan DDS dariNDS; Misalnya, ketika mencoba untuk melakukan perbandingan kolom untuk UPSERT, mengatur serverpemeriksaan serta dalam kasus Anda perlu membuat DDS baru di masa depan.• Mempertimbangkan sensitifitas sangat hati-hati. Hasil query akan berbeda tergantung padahuruf besar dan kecil.Kita perlu untuk menetapkan kasus sesuai dengan persyaratan pengguna untuk menyortirurutan. Untuk studi kasus Amadeus hiburan, kita akan menggunakan SQL Server standar pemeriksaan,SQL_Latin1_General_CP1_CI_AS, sehingga akan case-sensitive.• Untuk setiap database kami akan membuat enam filegroups, terletak di enam disk fisik yang berbeda diRAID 5, dengan satu transaksi log file di disk ditunjuk log RAID 1. Filegroupsadalah kumpulan file database. Menetapkan lokasi default database di serverproperti untuk pertandingan ini. Hal ini diperlukan sehingga ketika kami menciptakan database baru (untukcontoh, DDS baru), SQL Server akan menempatkan file data dan log database yang benarlokasi. Hal ini dilakukan dengan mengklik kanan nama SQL Server Management Studiodan memilih properti. Klik Pengaturan Database, dan memodifikasi default databaselokasi.• Mengatur file data untuk mendukung pengaturan sebelumnya filegroup, berarti bahwaketika membuat database, tempat file data sesuai lokasi filegroup. Kami memiliki enamdisk fisik untuk data, jadi gunakan baik oleh menyebar filegroups ke berbeda fisikdisk. Menempatkan file-file log dari setiap database pada disk log lain, sebagaimana ditetapkan dalamBagian sebelumnya. Menetapkan ukuran awal file data selama enam sampai dua belas bulan pertumbuhandengan menetapkan ukuran awal dengan benar saat membuat database. Menjaga datadan log file secara manual; tidak bergantung pada autogrowth. Jika ada data beban operasi yangmemerlukan ruang log lebih daripada apa tersedia, operasi akan mengambil waktu lama untukmenyelesaikan karena itu harus menunggu sampai menyelesaikan operasi tumbuh. Pertumbuhan databasedengan sedikit penambahan menyebabkan masalah kinerja karena file dan diskfragmentasi. Kita masih perlu menghidupkan autogrow (dengan kenaikan besar), tetapi menggunakannyahanya untuk tindakan darurat.• Didasarkan pada ukuran database yang diperkirakan di bagian sebelumnya (400 dan 300 duatahun), bertujuan untuk enam bulan aku akan menetapkan ukuran awal DDS 100 GB denganpertumbuhan kenaikan dari 25GB dan ukuran awal NDS 75 GB dengan pertumbuhan 15GBpeningkatan. Ukuran awal untuk DDS dan NDS (100 dan 75 GB) dihitung berdasarkanmengambil proporsi linier proyeksi dua tahun (400GB dan 300GB) untuk enambulan. Jika Anda memiliki muatan awal, kemudian tambahkan jumlah ini untuk ukuran awal. Misalnya,Jika beban awal 30GB, maka menjadi ukuran awal untuk DDS dan NDS 130GB
Sedang diterjemahkan, harap tunggu..
• Keep database names short and concise. DDS, NDS, Stage, and Meta will do. We need to
keep them short because they will be used as prefixes to ETL process names and stored
procedure names.
• Remember to keep the collation of all data warehouse databases the same, preferably
as per the company’s SQL Server installation standard defined by the SQL Server DBA.
Database collation defines how SQL Server handles character and Unicode data, such
as case-sensitivity, sort order, and code page. If they are different, there will be conversion
problems when populating the NDS from the stage and populating the DDS from
the NDS; for example, when trying to do column comparisons for UPSERT, set the server
collation as well in case you need to create a new DDS in the future.
• Consider case sensitivity very carefully. Query results will be different depending on the
case sensitivity.We need to set case according to the user requirements for sorting
order. For the Amadeus Entertainment case study, we will use SQL Server default collation,
SQL_Latin1_General_CP1_CI_AS, so it will be case-insensitive.
• For each database we will create six filegroups, located on six different physical disks on
RAID 5, with one transaction log file located in the designated log disk of RAID 1. Filegroups
are a collection of database files. Set the database default location in the server
property to match this. This is necessary so that when we create a new database (for
example, a new DDS), SQL Server will put the database data and log files in the correct
locations. This is done by right-clicking the SQL Server name in Management Studio
and choosing Properties. Click Database Settings, and modify the default database
locations.
• Arrange the data files to support the previous filegroup arrangement, meaning that
when creating the database, place data files as per the filegroup locations. We have six
physical disks for data, so use them well by spreading the filegroups into different physical
disks. Put the log files of each database on different log disks, as specified in the
previous section. Set the initial size of the data files for six to twelve months of growth
by specifying the initial size correctly when creating the database. Maintain the data
and log files manually; do not rely on autogrowth. If there is a data load operation that
requires more log space than what’s available, the operation will take a long time to
complete because it has to wait until the grow operation completes. Growing a database
by little increments causes a performance problem because of file and disk
fragmentation. We still need to turn on autogrow (with a large increment) but use it
only for emergency measures.
• Based on the estimated database size in the previous section (400 and 300 over two
years), aiming for six months I would set the initial size of the DDS to 100GB with a
growth increment of 25GB and the initial size of the NDS to 75GB with a 15GB growth
increment. The initial sizes for the DDS and the NDS (100 and 75GB) are calculated by
taking the linear proportion of the two-year projection (400GB and 300GB) for six
months. If you have initial load, then add this amount to the initial sizes. For example,
if the initial load is 30GB, then the initial sizes for the DDS and the NDS become 130GB
keep them short because they will be used as prefixes to ETL process names and stored
procedure names.
• Remember to keep the collation of all data warehouse databases the same, preferably
as per the company’s SQL Server installation standard defined by the SQL Server DBA.
Database collation defines how SQL Server handles character and Unicode data, such
as case-sensitivity, sort order, and code page. If they are different, there will be conversion
problems when populating the NDS from the stage and populating the DDS from
the NDS; for example, when trying to do column comparisons for UPSERT, set the server
collation as well in case you need to create a new DDS in the future.
• Consider case sensitivity very carefully. Query results will be different depending on the
case sensitivity.We need to set case according to the user requirements for sorting
order. For the Amadeus Entertainment case study, we will use SQL Server default collation,
SQL_Latin1_General_CP1_CI_AS, so it will be case-insensitive.
• For each database we will create six filegroups, located on six different physical disks on
RAID 5, with one transaction log file located in the designated log disk of RAID 1. Filegroups
are a collection of database files. Set the database default location in the server
property to match this. This is necessary so that when we create a new database (for
example, a new DDS), SQL Server will put the database data and log files in the correct
locations. This is done by right-clicking the SQL Server name in Management Studio
and choosing Properties. Click Database Settings, and modify the default database
locations.
• Arrange the data files to support the previous filegroup arrangement, meaning that
when creating the database, place data files as per the filegroup locations. We have six
physical disks for data, so use them well by spreading the filegroups into different physical
disks. Put the log files of each database on different log disks, as specified in the
previous section. Set the initial size of the data files for six to twelve months of growth
by specifying the initial size correctly when creating the database. Maintain the data
and log files manually; do not rely on autogrowth. If there is a data load operation that
requires more log space than what’s available, the operation will take a long time to
complete because it has to wait until the grow operation completes. Growing a database
by little increments causes a performance problem because of file and disk
fragmentation. We still need to turn on autogrow (with a large increment) but use it
only for emergency measures.
• Based on the estimated database size in the previous section (400 and 300 over two
years), aiming for six months I would set the initial size of the DDS to 100GB with a
growth increment of 25GB and the initial size of the NDS to 75GB with a 15GB growth
increment. The initial sizes for the DDS and the NDS (100 and 75GB) are calculated by
taking the linear proportion of the two-year projection (400GB and 300GB) for six
months. If you have initial load, then add this amount to the initial sizes. For example,
if the initial load is 30GB, then the initial sizes for the DDS and the NDS become 130GB
Sedang diterjemahkan, harap tunggu..
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