ランダムなサンプルデータ生成 (MySQL, PostgreSQL, Oracle, SQL Server)

2021-06-02 Last updated : 2021-10-02 hayashier

MySQL

  • 1 Sakilaデータベース

    • MySQL側の準備

      • RDSでは、SYSアクセス(SUPER権限)は提供されていません。
      • 自動バックアップ有効時にバイナリログも有効になっているが、この状況でトリガーを作成すると、以下のエラーが返されます。そのため、log_bin_trust_function_creatorsのパラメータを有効にしておく
        • ERROR 1419 (HY000) at line 214: You do not have the SUPER privilege and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)

    • 以下を実行。すると、sakilaというデータベースが作成され、複数のサンプルデータを挿入できる。

      $ mysql -h xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com -u hayashier -p < <( \
    wget 'http://downloads.mysql.com/docs/sakila-db.zip' \
    && unzip -o sakila-db.zip 1>/dev/null \
    && cat sakila-db/sakila-schema.sql sakila-db/sakila-data.sql \
  )

    • 以下のようなテーブルが確認できます。

      mysql> use sakila;
mysql> show tables;
+----------------------------+
| Tables_in_sakila           |
+----------------------------+
| actor                      |
| actor_info                 |
| address                    |
| category                   |
| city                       |
| country                    |
| customer                   |
| customer_list              |
| film                       |
| film_actor                 |
| film_category              |
| film_list                  |
| film_text                  |
| inventory                  |
| language                   |
| nicer_but_slower_film_list |
| payment                    |
| rental                     |
| sales_by_film_category     |
| sales_by_store             |
| staff                      |
| staff_list                 |
| store                      |
+----------------------------+
23 rows in set (0.00 sec)

  • 2 sysbench

    • データベース作成

      CREATE DATABASE sbtest;

    • sysbenchインストール

      # Build Requirements, for RHEL/CentOS/Amazon Linux AMI
$ sudo yum -y install make automake libtool pkgconfig libaio-devel
# For MySQL support, replace with mysql-devel on RHEL/CentOS 5
$ sudo yum -y install mariadb-devel openssl-devel
# For PostgreSQL support
$ sudo yum -y install postgresql-devel
# For sysbench RPM
$ curl -s https://packagecloud.io/install/repositories/akopytov/sysbench/script.rpm.sh | sudo bash
$ sudo yum -y install sysbench

    • sysbench実行

      • データ生成という点では最初のコマンドの実行のみでOKです。sbtest1というテーブルを作成されます。2つめはベンチマークを取るときのコマンド実行例です。

        • MySQL

          # Generate data
$ sysbench --db-driver=mysql --table-size=10000000 --mysql-host=xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com --mysql-user=hayashier --mysql-password=Test1234 --mysql-db=sbtest oltp_read_write prepare
# Run benchmark
$ sysbench --db-driver=mysql --mysql-host=xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com --mysql-user=hayashier --mysql-password=Test1234 --mysql-db=sbtest --threads=32 --time=1800 oltp_read_write run

        • PostgreSQL

          # Generate data
$ sysbench --db-driver=pgsql --table-size=10000000 --pgsql-host=xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com --pgsql-user=hayashier --pgsql-password=Test1234 --pgsql-db=sbtest oltp_read_write prepare
# Run benchmark
$ sysbench --db-driver=pgsql --pgsql-host=xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com --pgsql-user=hayashier --pgsql-password=Test1234 --pgsql-db=sbtest --threads=32 --time=1800 oltp_read_write run

  • Others

    • 3 小さめのデータ

      create database test;
use test;
create table t1 (id int primary key);
insert into t1 values (1), (22), (333);
select * from t1;

    • 4 小さめのデータ

      use test;
create table t1 (id int not null, text varchar(32));
insert into t1 values (1, 'a');
insert into t1 values (2, 'b');
insert into t1 values (3, 'c');
insert into t1 values (4, 'd');
insert into t1 values (5, 'e');
select * from t1;

    • 5 大きめのデータ

      use test;
create table bigtable (id int not null, text varchar(600));
insert into bigtable (id, text) values (1, 'J04...8kB59');
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;
insert into bigtable (id,text) select 0,text from bigtable;

    • 6 大きめのデータ

      use test;
create table bigtable_inc (id int not null AUTO_INCREMENT, text varchar(600), PRIMARY KEY (id));
insert into bigtable_inc (id, text) values (1, 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;
insert into bigtable_inc (text) select text from bigtable_inc;

    • 7

      set global tmp_table_size = 268435456;
set global max_heap_table_size = 268435456;
create table table1 (id int primary key auto_increment, s1 varchar(32), s2 varchar(32));
insert into pstest.table1 values (null, md5(rand()), md5(rand()));
insert into pstest.table1 select null, md5(rand()), md5(rand()) from pstest.table1;
:
truncate table performance_schema.memory_summary_global_by_event_name;

    • 8

      use test;
create table randint (id int not null AUTO_INCREMENT, num BIGINT, text varchar(600), PRIMARY KEY (id));
insert into randint (id, num, text) values (1, FLOOR(RAND() * 10000000000000000), 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;
insert into randint (num, text) select FLOOR(RAND() * 10000000000000000), text from randint;

    • 9 値にちょっとしたバラエティを作る版

      CREATE TABLE item (
  id INT PRIMARY KEY AUTO_INCREMENT,
  name VARCHAR(10),
  description VARCHAR(30),
  price INT UNSIGNED,
  created_at DATETIME
);


INSERT INTO item () VALUES ();
INSERT INTO item (id) SELECT 0 FROM item;
INSERT INTO item (id) SELECT 0 FROM item;
INSERT INTO item (id) SELECT 0 FROM item;
INSERT INTO item (id) SELECT 0 FROM item;
INSERT INTO item (id) SELECT 0 FROM item;
INSERT INTO item (id) SELECT 0 FROM item;

UPDATE item SET
  name = CONCAT('item-', id),
  description = SUBSTRING(MD5(RAND()), 1, 30),
  price = CEIL(RAND() * 10000),
  created_at = ADDTIME(CONCAT_WS(' ','2017-01-01' + INTERVAL RAND() * 180 DAY, '00:00:00'), SEC_TO_TIME(FLOOR(0 + (RAND() * 86401))));

    • 10 ストアドプロシージャを利用した版

      CREATE TABLE t1 (id int, score int);

delimiter //
CREATE PROCEDURE insert_random_data()
BEGIN
    SET @limit = 20;
    SET @pos = 0;
    WHILE @limit > @pos DO
        insert into t1 values 
        (FLOOR(RAND() * 100000), FLOOR(RAND() * 100000)), 
            (FLOOR(RAND() * 100000), FLOOR(RAND() * 100000)),
            (FLOOR(RAND() * 100000), FLOOR(RAND() * 100000)),
            (FLOOR(RAND() * 100000), FLOOR(RAND() * 100000)),
            (FLOOR(RAND() * 100000), FLOOR(RAND() * 100000));
        SET @pos = @pos + 1;
    END WHILE;
END
//
delimiter ;

CALL insert_random_data();

DROP PROCEDURE insert_random_data;

PostgreSQL

  • 1 PostgreSQLのチュートリアルのデータベース

    • データベース作成

      CREATE DATABASE dvdrental;

    • pg_restoreコマンドを実行

      • RDSにはsuperuserの権限がないため、--no-ownerオプションを指定しないと、ERROR: role "postgres" does not existのようなエラーが出て実行できません。
      $ pg_restore -h xxxxxxxxxx.xxxxxxxxxx.ap-northeast-1.rds.amazonaws.com --no-owner -U hayashier -d dvdrental $( \
    wget 'https://www.postgresqltutorial.com/wp-content/uploads/2019/05/dvdrental.zip' \
    && unzip -o dvdrental.zip 1>/dev/null \
    && echo "./dvdrental.tar" \
  )

    • 以下のようなテーブルが確認できます。

      test=> \l
                                  List of databases
    Name    |  Owner   | Encoding |   Collate   |    Ctype    |   Access privileges   
------------+----------+----------+-------------+-------------+-----------------------
db1        | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
dvdrental  | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
postgres   | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
rdsadmin   | rdsadmin | UTF8     | en_US.UTF-8 | en_US.UTF-8 | rdsadmin=CTc/rdsadmin
sbtest     | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
sysbenchdb | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
template0  | rdsadmin | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/rdsadmin          +
            |          |          |             |             | rdsadmin=CTc/rdsadmin
template1  | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/hayashier          +
            |          |          |             |             | hayashier=CTc/hayashier
test       | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =Tc/hayashier         +
            |          |          |             |             | hayashier=CTc/hayashier
test2      | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
testdb     | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
u1db1      | hayashier | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
(12 rows)

test=> \c dvdrental
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
You are now connected to database "dvdrental" as user "hayashier".
dvdrental=> \dt
            List of relations
Schema |     Name      | Type  |  Owner   
--------+---------------+-------+----------
public | actor         | table | hayashier
public | address       | table | hayashier
public | category      | table | hayashier
public | city          | table | hayashier
public | country       | table | hayashier
public | customer      | table | hayashier
public | film          | table | hayashier
public | film_actor    | table | hayashier
public | film_category | table | hayashier
public | inventory     | table | hayashier
public | language      | table | hayashier
public | payment       | table | hayashier
public | rental        | table | hayashier
public | staff         | table | hayashier
public | store         | table | hayashier
(15 rows)

  • 2 sysbench

    • MySQLの項を参照

  • 3

    CREATE TABLE tables (
  user_id INTEGER,
  affiliate_code VARCHAR(50),
  timestamp timestamp not null default current_timestamp
);

INSERT INTO tables
(
user_id,
affiliate_code,
timestamp
)
SELECT
  s as user_id,
  'u_' || s as user_code,
  CAST('2017-1-1' as TIMESTAMP) + CAST(s.a ||' seconds' as interval) as timestamp
FROM
  GENERATE_SERIES(1,1000) as s(a);

Oracle

  • with SQL*Plus

    set pages 200
set lines 200

create table test_random (col1 number,col2 number, col3 varchar2(100), col4 number);

DECLARE
TYPE tbl_ins IS TABLE OF test_random%ROWTYPE INDEX BY BINARY_INTEGER;
w_ins   tbl_ins;
BEGIN
dbms_random.SEED(1);
  FOR i IN 1 .. 1000000 LOOP
  w_ins(i).col1 := i;                                     
  w_ins(i).col2 := mod(i,3);
  w_ins(i).col3 := 'ABC'||dbms_random.string('x',10);
  w_ins(i).col4 := ceil(dbms_random.value(1, 10000000000));
  END LOOP;
  FORALL i in 1 .. 1000000 INSERT INTO test_random VALUES w_ins(i);
  COMMIT;
END;
/

select * from test_random where ROWNUM <= 5 order by col1;

SQL Server

  • AdventureWorksのデータセットを利用。ローカルの場合は、データの復元で、対象のファイルを指定することで復元できるが、RDSの場合は、S3にファイルを配置し、RDS用に用意されたストアドプロシージャを実行する必要がある。

    • リストア

      exec msdb.dbo.rds_restore_database 
        @restore_db_name='testdb', 
        @s3_arn_to_restore_from='arn:aws:s3:::sqlserver-backup-test/AdventureWorks2019.bak';

    • 進捗確認

      exec msdb.dbo.rds_task_status @db_name='testdb'

Notes

My Twitter & RSS

Categories
AWS, Cloud, General, MySQL, PostgreSQL, and RDBMS

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous article
MySQL, PostgreSQL ベンチマーク(sysbench, pgbench)
2021-06-02
Next article
RDS PostgreSQL に拡張機能導入 (pgaudit, pg_repack, PostGIS, pgBadger, pg_config)
2021-06-02