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lab2-4/tasks.sql

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+use OrdersDB;
+# 1
+select *
+from Orders into outfile '/var/lib/mysql-files/Orders123.csv' fields terminated by ','
+enclosed by '"' lines terminated by '\n';
+
+CREATE TABLE NewOrder (
+    ONUM int NOT NULL,
+    AMT DECIMAL(8, 2) NOT NULL,
+    ODATE DATE,
+    SNUM int,
+    CNUM int,
+    PRIMARY KEY (ONUM),
+    FOREIGN KEY (SNUM) REFERENCES Salespeople (SNUM),
+    FOREIGN KEY (CNUM) REFERENCES Customers (CNUM)
+);
+
+LOAD DATA INFILE '/var/lib/mysql-files/Orders.csv' INTO
+TABLE NewOrder FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n' (
+    ONUM,
+    AMT,
+    ODATE,
+    SNUM,
+    CNUM,
+    @dummy
+);
+
+CREATE TABLE NewSalespeople AS SELECT * FROM Salespeople;
+
+CREATE TABLE NewCustomers LIKE Customers;
+
+INSERT INTO NewCustomers SELECT * FROM Customers;
+
+# 2
+
+use Team;
+
+ALTER TABLE member ADD birthday DATE DEFAULT NULL;
+
+ALTER TABLE member ADD salary DECIMAL(7, 2) NOT NULL DEFAULT 7999.99;
+
+load data infile '/var/lib/mysql-files/new_members.csv' into
+table member fields terminated by ',' enclosed by '"' lines terminated by '\n' ignore 1 lines (
+    m_id,
+    mname,
+    birthday,
+    mcity,
+    mmail,
+    salary
+);
+
+# 3
+
+select * from member into outfile '/var/lib/mysql-files/AllMembers.csv' 
+fields terminated by ',' enclosed by '"' lines terminated by '\n';
+
+# 4
+
+CREATE TABLE backup_member AS SELECT * FROM member;
+
+show create table backup_member;
+
+DESCRIBE backup_member;
+
+SELECT * FROM backup_member;
+
+# 5
+
+create database Orders_backup;
+
+CREATE TABLE IF NOT EXISTS Orders_backup.member LIKE member;
+
+INSERT INTO
+    Orders_backup.member
+SELECT *
+FROM member
+WHERE
+    birthday IS NULL;
+
+DESCRIBE Orders_backup.member;
+
+SELECT * FROM Orders_backup.member;