Secara umum, isi file disimpan di bawah tipe data Clob (TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT) di database MySQL Show JDBC provides support for the Clob datatype, to store the contents of a file in to a table in a database The setCharacterStream() method of the PreparedStatement interface accepts an integer representing the index of the parameter and, a Reader object as a parameter Dan atur konten dari objek (file) pembaca yang diberikan sebagai nilai ke parameter (tempat penampung) dalam indeks yang ditentukan Setiap kali Anda perlu mengirim nilai teks yang sangat besar, Anda dapat menggunakan metode ini Menyimpan file teks menggunakan JDBCJika Anda perlu menyimpan file dalam database menggunakan program JDBC, buat tabel dengan tipe data Clob (TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT) seperti yang ditunjukkan di bawah ini CREATE TABLE Articles(Name VARCHAR(255), Article LONGTEXT); Now, using JDBC connect to the database and prepare a PreparedStatement to insert values into the above created table String query = "INSERT INTO Tutorial(Name, Article) VALUES (?,?)";PreparedStatement pstmt = con.prepareStatement(query); Set values to the place holders using the setter methods of the PreparedStatement interface and for the Clob datatype set value using the setCharacterStream() method ExampleFollowing is an example demonstrating how to insert file in to a MySQL database using JDBC program. Here we are have created a table with a Clob datatype, inserted values in to it import java.io.FileReader; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; public class InsertingFileToDatabase { public static void main(String args[]) throws Exception { //Registering the Driver DriverManager.registerDriver(new com.mysql.jdbc.Driver()); //Getting the connection String mysqlUrl = "jdbc:mysql://localhost/sampleDB"; Connection con = DriverManager.getConnection(mysqlUrl, "root", "password"); System.out.println("Connection established......"); //Inserting values String query = "INSERT INTO Articles(Name, Article) VALUES (?, ?)"; PreparedStatement pstmt = con.prepareStatement(query); pstmt.setString(1, "article1"); FileReader reader = new FileReader("E:\data\article1.txt"); pstmt.setCharacterStream(2, reader); pstmt.execute(); pstmt.setString(1, "article2"); reader = new FileReader("E:\data\article2.txt"); pstmt.setCharacterStream(2, reader); pstmt.execute(); pstmt.setString(1, "article3"); reader = new FileReader("E:\data\article3.txt"); pstmt.setCharacterStream(2, reader); pstmt.execute(); System.out.println("Data inserted......"); } } OutputConnection established...... Data inserted...... Using MySQL workbench, you can export the contents of a table to various files such as html files, . csv files text files etc. If you export the contents of the table after inserting data to a HTTML file its output will look like Besides being able to store native JSON in MySQL, you can also use MySQL as a document store (doc store) to store JSON documents. And, you can use (create, read, update and delete) commands in either JavaScript or Python This post will show you some of the basic commands for using MySQL as a document store RequirementsTo use MySQL as a document store, you will need to use the following server features The X Plugin enables the MySQL Server to communicate with clients using the X Protocol, which is a prerequisite for using MySQL as a document store. The X Plugin is enabled by default in MySQL Server as of MySQL 8. 0. For instructions to verify X Plugin installation and to configure and monitor X Plugin, see Section 20. 5, “X Plugin” The X Protocol supports both CRUD and SQL operations, authentication via SASL, allows streaming (pipelining) of commands and is extensible on the protocol and the message layer. Clients compatible with X Protocol include MySQL Shell and MySQL 8. 0 Connectors Clients that communicate with a MySQL Server using X Protocol can use X DevAPI to develop applications. X DevAPI offers a modern programming interface with a simple yet powerful design which provides support for established industry standard concepts. This chapter explains how to get started using either the JavaScript or Python implementation of X DevAPI in MySQL Shell as a client. See X DevAPI for in-depth tutorials on using X DevAPI And, you will need to have MySQL version 8. 0. x (or higher) installed, as well as the MySQL Shell version 8. 0. x (or higher). For these examples, I am using version 8. 0. 17 of both. (You could use version 5. 7. x, but I have not tested any of these commands in 5. 7. x) Starting MySQL Shell (mysqlsh)When starting MySQL Shell (Shell), you have two session options. The default option is , and this allows the session to connect using the X Protocol. The other option when starting Shell is , which establishes a “Classic Session” and connects using the standard MySQL protocol. For this post, I am using the default option of . There are other MySQL Shell command-line options for the X Protocol available. And, there are specific X Protocol variables which may need to be set for the connection Here is a list of all of the MySQL Shell commands and their shortcuts (for MySQL version 8. 0) Untuk memulai MySQL Shell (Shell), Anda cukup menjalankan perintah mysqlsh dari jendela terminal. The default mode is JavaScript (as shown by the JS in the prompt) $ mysqlsh MySQL Shell 8. 0. 17-commercial Copyright (c) 2016, 2019, Oracle and/or its affiliates. Seluruh hak cipta Type '\help' or '\?' for help; '\quit' to exit MySQL JS By starting Shell without any variables, you will need to connect to a database instance. You do this with the \connect command, or you can use the \c shortcut. Sintaksnya adalah \c user@ip_address SQLsaya JS \c root@127. 0. 0. 1 Or, to start Shell with the connection information, specify the user and host IP address. The syntax is mysqlsh user@ip_address $ mysqlsh root@127. 0. 0. 1 Copyright (c) 2016, 2019, Oracle and/or its affiliates. Seluruh hak cipta Type '\help' or '\?' for help; '\quit' to exit You may find a list of all of the command-line options at https. //dev. mysql. com/doc/mysql-shell/8. 0/en/mysqlsh. html The Shell prompt displays the connection information, whether or not you are using ssl, and your current mode (there are three modes – JavaScript, Python and SQL). In the earlier example, you are in the (default) JavaScript mode. You can also get your session information with the session command MySQL 127. 0. 0. 1. 33060+ ssl JS session All of these commands are case-sensitive, so if you type an incorrect command, you will see the following error MySQL 127. 0. 0. 1. 33060+ ssl JS Session Here is how you switch between the three modes. – JavaScript, Python and SQL MySQL 127. 0. 0. 1. 33060+ ssl JS \sql Ada juga beberapa format keluaran yang berbeda. Anda dapat mengubah output menggunakan shell. pilihan. mengatur perintah. Standarnya adalah tabel. Berikut adalah contoh masing-masing, menggunakan perintah yang sama format keluaran tabelSayaSQL 127. 0. 0. 1. 33060+ ssl JS cangkang. pilihan. set('resultFormat','tabel') SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. runSql('pilih pengguna, host dari mysql. pengguna') format keluaran JSONSayaSQL 127. 0. 0. 1. 33060+ ssl JS cangkang. pilihan. set('resultFormat','json') SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. runSql('pilih pengguna, host dari mysql. batas pengguna 2') berformat tabSayaSQL 127. 0. 0. 1. 33060+ ssl JS shell. pilihan. set('resultFormat','tabbed') SayaSQL 127. 0. 0. 1. 33060+ ssl sesi JS . runSql('pilih pengguna, host dari mysql. pengguna') format vertikalSayaSQL 127. 0. 0. 1. 33060+ ssl JS shell. pilihan. set('resultFormat','vertikal') SayaSQL 127. 0. 0. 1. 33060+ ssl sesi JS . runSql('pilih pengguna, host dari mysql. pesanan pengguna menurut pengguna desc') Catatan. Dengan MySQL Doc Store, istilah untuk mendeskripsikan database, tabel, dan baris berbeda. Basis data disebut skema (walaupun penyimpanan dokumen "tanpa skema"). Tabel disebut koleksi, dan baris data disebut dokumen Untuk membuat skema bernama test1, gunakan perintah createSchema SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. createSchema("test1") Untuk mendapatkan daftar skema saat ini, gunakan perintah getSchemas SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. getSchemas() Selain itu, Anda dapat menjalankan perintah SQL di dalam Doc Store – sesuatu yang tidak dapat Anda lakukan dengan sebagian besar database NoSQL lainnya. Alih-alih menggunakan perintah getSchemas, Anda dapat mengeluarkan perintah SHOW DATABASES SQL menggunakan perintah runSql NoSQL SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. runSql('tampilkan database') Untuk menjatuhkan skema bernama test1, Anda menggunakan perintah dropSchema SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. dropSchema("tes1") Sama seperti dengan MySQL, Anda harus memilih skema (database) yang ingin Anda gunakan. Ini menunjukkan cara membuat skema dan mengaturnya sebagai skema default Anda. Dengan perintah \use, Anda benar-benar menyetel variabel bernama db agar sama dengan skema default. Jadi, setelah Anda mengatur skema Anda dengan perintah \use, saat Anda mengeluarkan perintah db, Anda dapat melihat skema default SayaSQL 127. 0. 0. 1. 33060+ ssl JS sesi. createSchema("bengkel") SayaSQL 127. 0. 0. 1. 33060+ ssl JS \use workshop SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db Untuk mengubah nilai variabel db, Anda dapat menggunakan perintah \use atau Anda dapat mengatur nilai db menggunakan perintah var (variabel). Sesi komando. getSchema akan mengembalikan nilai skema, tetapi tidak secara otomatis menetapkan nilai variabel db. ) SayaSQL 127. 0. 0. 1. 33060+ ssl JS \use workshop SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db SayaSQL 127. 0. 0. 1. 33060+ ssl lokakarya sesi JS . getSchema('mysql'); SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS var db = sesi. getSchema('mysql'); SayaSQL 127. 0. 0. 1. 33060+ ssl mysql JS db Anda juga dapat membuat variabel Anda sendiri. Berikut adalah contoh pengaturan variabel sdb sama dengan perintah SQL SHOW DATABASES SayaSQL 127. 0. 0. 1. 33060+ ssl workshop JS var sdb = sesi. runSql('tampilkan database') SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS sdb Tetapi variabelnya hanya bagus untuk sesi Anda saat ini. Jika Anda keluar dari Shell, masuk kembali, dan menjalankan kembali variabel, Anda akan mendapatkan pesan kesalahan yang menyatakan bahwa variabel tidak ditentukan SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS \q # akar mysqlsh@127. 0. 0. 1 SayaSQL 127. 0. 0. 1. 33060+ ssl JS sdb Setelah Anda membuat skema (database), dan memilihnya melalui perintah \use, maka Anda dapat membuat koleksi (tabel) dan memasukkan dokumen JSON ke dalam koleksi. Saya akan membuat koleksi bernama test1 SayaSQL 127. 0. 0. 1. 33060+ ssl JS \use workshop SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. createCollection("test1") Anda bisa mendapatkan daftar koleksi dengan menggunakan perintah getCollections, dan Anda juga bisa menjalankan perintah SQL dengan session. perintah runSql. Perintah getCollections sama dengan perintah SQL SHOW TABLES SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. getCollections() SayaSQL 127. 0. 0. 1. 33060+ ssl workshop sesi JS . runSql('TAMPILKAN TABEL') Untuk menjatuhkan koleksi, gunakan perintah dropCollection. Anda dapat memverifikasi bahwa koleksi telah dihapus dengan menggunakan perintah getCollections lagi SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. dropCollection("test1") Jika Anda belum memilih database default, Anda juga dapat menentukan nama skema sebelum nama koleksi (yang merupakan tipe sintaks yang sama saat Anda membuat tabel di dalam database di MySQL). Anda akan melihat hasilnya berbeda, seperti ketika Anda menentukan nama skema sebelum nama koleksi, nama skema itu juga dikembalikan SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. createCollection("makanan") SayaSQL 127. 0. 0. 1. 33060+ ssl JS db. createCollection("bengkel. makanan2") To add a JSON document to a collection, you use the add command. Anda harus menentukan koleksi sebelum menggunakan perintah add. (Anda tidak dapat mengeluarkan perintah seperti bengkel. makanan. menambahkan. ) Anda dapat menambahkan dokumen dengan atau tanpa pengembalian dan spasi ekstra (atau tab). Di sini dokumen JSON untuk ditambahkan ke koleksi bernama bengkel { Catatan. Beberapa format JSON memerlukan tanda kutip ganda di sekitar kunci/string. Dalam contoh ini, Name_First memiliki tanda kutip ganda pada contoh pertama, dan contoh kedua tidak memiliki tanda kutip ganda. Kedua format akan berfungsi di Shell -> pada contoh di bawah ini ditambahkan oleh Shell. Anda tidak perlu mengetik ini di baris perintah
SayaSQL 127. 0. 0. 1. 33060+ ssl proyek JS db. makanan. tambahkan({ Berikut adalah contoh dari setiap metode untuk menambahkan dokumen JSON – satu di mana semua data dalam dokumen JSON berada pada satu baris, dan satu lagi di mana dokumen JSON berisi data pada banyak baris dengan pengembalian dan spasi disertakan SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. tambahkan({Nama_Pertama. "Rubah", Nama_Last. "Mulder", makanan_favorit. {Sarapan. "telur dan daging", Makan siang. "sandwich babi yang ditarik", Makan malam. "steak dan kentang panggang"}}) SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. tambahkan({ Sejauh ini, saya telah membuat skema, dan koleksi, dan saya telah menambahkan satu dokumen ke koleksi. Selanjutnya, saya akan menunjukkan cara melakukan pencarian menggunakan perintah find Mencari DokumenUntuk menemukan semua record dalam koleksi, gunakan perintah find tanpa menentukan kriteria pencarian apa pun SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. temukan() Catatan. Kunci _id pada output di atas ditambahkan secara otomatis ke setiap dokumen dan nilai _id tidak dapat diubah. Juga, indeks dibuat secara otomatis pada kolom _id. Anda dapat memeriksa indeks menggunakan perintah SQL SHOW INDEX. (Untuk membuat output lebih mudah dilihat, saya mengubah formatnya menjadi vertikal dan saya mengubahnya kembali ke tabel) SayaSQL 127. 0. 0. 1. 33060+ ssl workshop JS shell. pilihan. set('resultFormat','vertikal') SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find('Nama_Pertama = "Rubah"') Dan, jika hasil pencarian Anda tidak menemukan dokumen yang cocok, Anda akan mendapatkan kembalian Set kosong dan waktu yang diperlukan untuk menjalankan kueri SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find('Nama_Depan = "Jason"') Pencarian pertama mengembalikan semua kunci dalam dokumen karena saya tidak menentukan kriteria pencarian apa pun di dalam perintah find – db. makanan. Temukan(). Contoh ini adalah bagaimana Anda mengambil hanya satu kunci di dalam dokumen. Dan perhatikan bahwa key favorite_food berisi daftar sub-key di dalam sebuah key SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find('Nama_Pertama = "Rubah"'). bidang('makanan_favorite') Untuk mengembalikan beberapa kunci, tambahkan kunci tambahan di dalam bagian bidang, dipisahkan dengan koma SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find('Nama_Pertama = "Rubah"'). bidang("makanan_favorit", "Nama_Belakang") Catatan. Bidang dikembalikan dalam urutan penyimpanannya dalam dokumen, dan bukan dalam urutan bagian bidang. Urutan bidang kueri tidak menjamin urutan tampilan yang sama SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find( 'Nama_Pertama = "Rubah"' ). bidang ("makanan_favorit. Sarapan" ) Untuk memodifikasi dokumen, Anda menggunakan perintah modifikasi, bersama dengan kriteria pencarian untuk menemukan dokumen yang ingin Anda ubah. Ini adalah dokumen JSON asli { Saya akan mengubah subkunci makanan favorit Fox menjadi Makan Siang menjadi "sup dalam mangkuk roti" dan Makan Malam menjadi "steak dan brokoli" SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. modifikasi("Nama_Pertama = 'Fox'"). set("makanan_favorit", {Makan siang. "Sup dalam mangkuk roti", Makan malam. "steak dan brokoli"}) Saya bisa melihat perubahannya dengan mengeluarkan perintah find, mencari Name_First sama dengan "Fox" SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find('Nama_Pertama = "Rubah"') Perhatikan bahwa subkunci Sarapan tidak lagi ada dalam daftar. Ini karena saya mengubah daftar makanan_favorit menjadi hanya makan siang dan makan malam Untuk mengubah hanya satu subkunci di bawah makanan favorit, seperti Makan Malam, saya dapat melakukannya dengan perintah set SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. modifikasi("Nama_Pertama = 'Fox'"). set('makanan_favorit. Makan malam', 'Pizza') SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find("Name_First='Fox'") Jika saya ingin menghapus satu sub-kunci di bawah favorite_food, saya dapat menggunakan perintah unset. Saya akan menghapus subkunci Makan Malam SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. modifikasi("Nama_Pertama = 'Fox'"). tidak disetel("makanan_favorit. Makan malam") SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. find("Name_First='Fox'") Makanan_favorit kunci berisi daftar, tetapi kunci juga dapat berisi larik. Perbedaan format utama dalam array dan daftar adalah array memiliki tanda kurung siku buka dan tutup [ ]. Tanda kurung berada di luar nilai untuk array Berikut adalah dokumen asli dengan daftar favorite_food db. makanan. menambahkan( { Saya akan menghapus dokumen untuk Fox, konfirmasi penghapusan terjadi dan masukkan dokumen baru – tapi kali ini, saya akan menggunakan array untuk favorite_food (dan perhatikan tanda kurung siku) SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. hapus('Nama_Pertama = "Rubah"') SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. tambahkan({ Saat berurusan dengan array, saya dapat memodifikasi setiap elemen dalam array, atau saya dapat menambahkan elemen array lainnya. Saya akan menambahkan Snack favorit Fox ke array dengan perintah arrayAppend SayaSQL 127. 0. 0. 1. 33060+ ssl bengkel JS db. makanan. modifikasi("Nama_Pertama = 'Fox'"). arrayAppend("makanan_favorite", {Snack. "Biji bunga matahari"}) Baris cocok. 1 Changed. 1 Warnings. 0 The key favorite_food now contains an array with two separate values in it. The sub-keys in the array position favorite_food[0] contains values for Lunch, Breakfast and Dinner values, while the array position favorite_food[1] only contains the Snack value Note. If you aren't familiar with arrays, an array is like a list that contains elements. Elements of the array are contained in memory locations relative to the beginning of the array. The first element in the array is actually zero (0) elements away from the beginning of the array. So, the placement of the first element is denoted as array position zero (0) and this is designated by [0]. Most programming languages have been designed this way, so indexing from zero (0) is pretty much inherent to most languages MySQL 127. 0. 0. 1. 33060+ ssl workshop JS db. foods. modify("Name_First = 'Fox'"). arrayDelete("$. favorite_food[1]") Baris cocok. 1 Changed. 1 Warnings. 0 If I want to add an extra key, I need to add a few more variables and their values. I will need to define my schema and collection. Then I can use the patch command to add a key to an existing document I am going to add a middle name to Fox's document MySQL 127. 0. 0. 1. 33060+ ssl workshop JS var schema = session. getSchema('workshop') MySQL 127. 0. 0. 1. 33060+ ssl workshop JS var collection = schema. getCollection('foods') MySQL 127. 0. 0. 1. 33060+ ssl workshop JS collection. modify("Name_First = 'Fox'"). patch({ Name_Middle. 'William' }) Baris cocok. 1 Changed. 1 Warnings. 0 In order to demonstrate indexes, I will need to import a large amount of data. Before I import data, I need to be sure that I have a variable set for the mysqlx client protocol to allow larger client packets. Specifically, I need to set the mysqlx_max_allowed_packet variable to the largest allowable size of 1TB. You can set this variable in the MySQL configuration file (my. cnf or my. ini) and reboot the MySQL instance, or you can set it for your session I can check the values of the mysqlx_max_allowed_packet variable from within Shell, and if it isn't set to 1TB, I will modify it for this session. (I can see the value for mysqlx_max_allowed_packet is set to 100MB or 100 megabytes) MySQL 127. 0. 0. 1. 33060+ ssl JS session. runSql('SHOW VARIABLES like "%packet%"') MySQL 127. 0. 0. 1. 33060+ ssl JS session. runSql('SET @@GLOBAL. mysqlx_max_allowed_packet = 1073741824') MySQL 127. 0. 0. 1. 33060+ ssl JS session. runSql('SHOW VARIABLES like "%packet%"') I don't want to write this large import to the binary log (I have binlog enabled), so I can use the SQL command to first. I am going to create a new collection named project, and then import a 400+ megabyte JSON file into the new collection MySQL 127. 0. 0. 1. 33060+ ssl JS session. runSql('SET SQL_LOG_BIN=0') MySQL 127. 0. 0. 1. 33060+ ssl JS \use project 2613346. 2613346 As you can see from the output above, I imported 2,613,346 documents Now that I have my 2. 6 million documents in the database, I will do a quick search and limit the results to one record by using the limit command. Ini akan menampilkan kunci dalam dokumen MySQL 127. 0. 0. 1. 33060+ ssl JS \use project MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. find(). limit(1) Again – notice an index for the key _id has automatically been added MySQL 127. 0. 0. 1. 33060+ ssl JS session. runSql('SHOW INDEX FROM project. GoverningPersons') To demonstrate indexes on a large dataset, I will perform two searches against all documents in the project collection – where LastName is equal to FRISCH and where LastName is equal to VARNELL. Then, I will create the index on LastName, and re-run the two find queries. Note. I am not displaying all of the returned documents to save space MySQL 127. 0. 0. 1. 33060+ ssl JS db. Pemerintahan. find('LastName = "FRISCH"') MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. find('LastName = "VARNELL"') The searches took 1. 3559 and 1. 0854 seconds, respectively. I can now create an index on LastName. When I create an index, I have to specify the data type for that particular key. And for a text key, I have to specify how many characters of that key I want to include in the index. (Note. see TEXT(20) in the command below) MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. createIndex("i_Name_Last", {fields. [{field. "$. LastName", type. "TEXT(20)"}]}) Now I will re-run the same two queries where LastName equals FRISCH and where LastName equals VARNELL MySQL 127. 0. 0. 1. 33060+ ssl JS db. Pemerintahan. find('LastName = "FRISCH"') MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. find('LastName = "VARNELL"') The queries ran much faster with an index – 0. 0097 seconds and 0. 0008 seconds. Not bad for searching 2. 6 million records Note. The computer I was using for this post is a Hackintosh, running Mac OS 10. 13. 6, with an Intel i7-8700K 3. 7GHz processor with six cores, with 32GB 2666MHz DDR4 RAM, and an SATA III 6 Gb/s, M. 2 2280 SSD. Your performance results may vary MySQL 127. 0. 0. 1. 33060+ ssl JS shell. options. set('resultFormat','vertical') I can create an index on multiple columns as well. Here is an index created on the State and Zip fields MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. createIndex('i_state_zip', {fields. [ {field. '$. State', type. 'TEXT(2)'}, {field. '$. Zip', type. 'TEXT(10)'}]}) I can take a look at the index as well (the other index results were removed to save space) MySQL 127. 0. 0. 1. 33060+ ssl JS shell. options. set('resultFormat','vertical') I will run a query looking for the first entry FRISH based upon his state (WA) and Zip (99205). The query result time is still pretty good, even though I am also returning his LastName MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. find("State='WA' AND Zip = '99205' AND LastName = 'FRISCH'") To drop an index, use the dropIndex command MySQL 127. 0. 0. 1. 33060+ ssl JS db. GoverningPersons. dropIndex("i_Name_Last") NoSQL and SQL in the same databaseThe great advantage to using MySQL to store JSON documents is that the data is stored in the InnoDB storage engine. So, the NoSQL document store database has features and benefits of InnoDB – such as transactions and ACID-compliance. This also means that you can use MySQL features like replication, group replication, transparent data encryption, etc. And if you need to restore a backup and play back the binlog files for a point-in-time recovery, you can do that as well, as all of the NoSQL transactions are written to the MySQL Binary Log. Here is what a NoSQL transaction looks like in the MySQL binary log NoSQL koleksi. modify(""Name_First = 'Selena'"). patch({ Name_Middle. 'Kitty' }) MySQL Binlog # at 3102 Finally, here is an example of how to do a transaction MySQL 127. 0. 0. 1. 33060+ ssl JS session. startTransaction() Since the MySQL Document Store utilizes the MySQL database server and since the documents are stored in InnoDB, you can also use MySQL SQL JSON functions as well to manipulate the data stored in either a JSON document or in a JSON data type. Here is a list of the JSON functions available, and while JSON functions were introduced in 5. 7, not all of these functions will be in 5. 7 – but they are all in version 8. 0 JSON_ARRAYJSON_ARRAY_APPENDJSON_ARRAY_INSERTJSON_CONTAINSJSON_CONTAINS_PATHJSON_DEPTHJSON_EXTRACTJSON_INSERTJSON_KEYSJSON_LENGTHJSON_MERGE_PATCHJSON_MERGE_PRESERVEJSON_OBJECTJSON_OVERLAPSJSON_PRETTYJSON_QUOTEJSON_REMOVEJSON_REPLACEJSON_SCHEMA_VALIDJSON_SCHEMA_VALIDATION_REPORTJSON_SEARCHJSON_SETJSON_STORAGE_FREEJSON_STORAGE_SIZEJSON_TABLEJSON_TYPEJSON_UNQUOTEJSON_VALIDMEMBER OFBut you already use Mongo? And you have MySQL as well?If you already use Mongo and MySQL, and you want to switch to MySQL, or if your DBA's already know Mongo, then moving to MySQL or using the MySQL doc store is pretty easy. The commands used in Mongo are very similar to the ones used in the MySQL Document Store. The login command is similar to the MySQL “regular” client command in that you specify the user and password with the -u and -p In MySQL Shell, you put the username followed by the @ and the IP address. And you can specify which database or schema you want to use upon login. Mongo memang memiliki beberapa pintasan dengan perintah show, seperti pada show dbs, show schemas, atau show collections. But you can do almost the same in MySQL Shell by setting variables to equal certain functions or commands (like I did earlier. ) To create a schemda/database in Mongo, you simply execute the use database name command – and it creates the schema/database if it doesn't exist. The other commands having to do with collections are almost the same Where there are differences, they are relatively small. Mongo uses the command insert and MySQL uses add when inserting documents. But then, other commands such as the remove document command are the same As for the last item in the table below, native Mongo can't run any SQL commands (without using a third-party software GUI tool) – so again, if you have MySQL DBA's on staff, the learning curve can be lower because they can use SQL commands if they don't remember the NoSQL commands CommandMongoMySQL Document Store (via Shell)Loginmongo ‐u ‐p ‐‐databasemysqlsh root@127. 0. 0. 1 ‐‐databaseSelect schemause database_name\use database_nameShow schemas/dbsshow dbssession. getSchemas()Create schemause database_namesession. createSchema()Show collectionsshow collections or db. getCollectionNames();db. getCollections()Create collectiondb. createCollection("collectionName");db. createCollection("collectionName");Insert documentdb. insert({field1. "value", field2. "value"})db. insert({field1. "value", field2. "value"})Remove documentdb. remove()db. remove()Run SQL commandsession. runSql(SQL_command)So, with MySQL, you have a hybrid solution where you can use both SQL and NoSQL at the same time. And, since you are storing the JSON documents inside MySQL, you an also use the MySQL JSON functions to search, update and delete the same records What data can be stored in MySQL?MySQL supports SQL data types in several categories. numeric types, date and time types, string (character and byte) types, spatial types, and the JSON data type .
Bagaimana cara menyimpan file PDF ke MySQL?MySQL memiliki tipe data BLOB yang dapat digunakan untuk menyimpan file seperti. pdf, . jpg, . txt, and the like. . 'id'. type INTEGER 'project_name'. type TEXT 'pdf_doc'. type BLOB Can you upload a file to MySQL?Get the file extension using pathinfo() function in PHP and validate the file format to check whether the user selects an image file. Upload image to server using move_uploaded_file() function in PHP . Insert image file name in the MySQL database using PHP. Upload status will be shown to the user.
How to store media files in MySQL database?Add File Uploads
First, let's make our sample database. CREATE TABLE uploads (id INT(4) NOT NULL AUTO_INCREMENT PRIMARY KEY, description CHAR(50), data LONGBLOB, filename CHAR(50), filesize CHAR(50), filetype CHAR(50) ); The first thing you should notice is a field called id that is set to AUTO_INCREMENT. |