diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..f8a1927
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,16 @@
+
+# Default ignored files
+/workspace.xml
+
+.idea/*
+*.iml
+*/target/*
+*/target/**
+.classpath
+.project
+.settings/
+
+# Apple files
+*.DS_Store
+.AppleDouble
+.LSOverride
\ No newline at end of file
diff --git a/.idea/SQL.BuildAndDestroy.iml b/.idea/SQL.BuildAndDestroy.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/SQL.BuildAndDestroy.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..be4b286
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,7 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="SqlDialectInspection" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="SqlNoDataSourceInspection" enabled="false" level="WARNING" enabled_by_default="false" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..28a804d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..9bfba77
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/SQL.BuildAndDestroy.iml" filepath="$PROJECT_DIR$/.idea/SQL.BuildAndDestroy.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/answers/exercise1.sql b/answers/exercise1.sql
index e69de29..07c2318 100644
--- a/answers/exercise1.sql
+++ b/answers/exercise1.sql
@@ -0,0 +1 @@
+CREATE DATABASE myNewDB;
\ No newline at end of file
diff --git a/answers/exercise10.sql b/answers/exercise10.sql
index e69de29..1fa5e76 100644
--- a/answers/exercise10.sql
+++ b/answers/exercise10.sql
@@ -0,0 +1 @@
+SELECT * FROM Students WHERE City IN ('Philadelphia', 'Trenton')
\ No newline at end of file
diff --git a/answers/exercise11.sql b/answers/exercise11.sql
index e69de29..3d56eb0 100644
--- a/answers/exercise11.sql
+++ b/answers/exercise11.sql
@@ -0,0 +1 @@
+SELECT * FROM Students ORDER BY City;
\ No newline at end of file
diff --git a/answers/exercise12.sql b/answers/exercise12.sql
index e69de29..387247f 100644
--- a/answers/exercise12.sql
+++ b/answers/exercise12.sql
@@ -0,0 +1 @@
+SELECT * FROM Students ORDER BY City DESC;
\ No newline at end of file
diff --git a/answers/exercise13.sql b/answers/exercise13.sql
index e69de29..795abb6 100644
--- a/answers/exercise13.sql
+++ b/answers/exercise13.sql
@@ -0,0 +1 @@
+SELECT * FROM Students ORDER BY Country, City;
\ No newline at end of file
diff --git a/answers/exercise14.sql b/answers/exercise14.sql
index e69de29..e562e34 100644
--- a/answers/exercise14.sql
+++ b/answers/exercise14.sql
@@ -0,0 +1 @@
+SELECT * FROM Students WHERE PostalCode IS NULL;
\ No newline at end of file
diff --git a/answers/exercise15.sql b/answers/exercise15.sql
index e69de29..f0ff0df 100644
--- a/answers/exercise15.sql
+++ b/answers/exercise15.sql
@@ -0,0 +1 @@
+SELECT * FROM Students WHERE PostalCode IS NOT NULL;
\ No newline at end of file
diff --git a/answers/exercise16.sql b/answers/exercise16.sql
index e69de29..8abbc29 100644
--- a/answers/exercise16.sql
+++ b/answers/exercise16.sql
@@ -0,0 +1 @@
+UPDATE Students SET City ='Edinburgh';
\ No newline at end of file
diff --git a/answers/exercise17.sql b/answers/exercise17.sql
index e69de29..475bb10 100644
--- a/answers/exercise17.sql
+++ b/answers/exercise17.sql
@@ -0,0 +1 @@
+UPDATE Students SET City = 'Edinburgh' WHERE Country = 'Scotland';
\ No newline at end of file
diff --git a/answers/exercise18.sql b/answers/exercise18.sql
index e69de29..2524ddc 100644
--- a/answers/exercise18.sql
+++ b/answers/exercise18.sql
@@ -0,0 +1 @@
+UPDATE Students SET City = 'Edinburgh', Country = 'Scotland' WHERE ID = 35;
\ No newline at end of file
diff --git a/answers/exercise19.sql b/answers/exercise19.sql
index e69de29..2cdd0fd 100644
--- a/answers/exercise19.sql
+++ b/answers/exercise19.sql
@@ -0,0 +1 @@
+DELETE FROM Students WHERE Country = 'Scotland';
\ No newline at end of file
diff --git a/answers/exercise2.sql b/answers/exercise2.sql
index e69de29..e7487f3 100644
--- a/answers/exercise2.sql
+++ b/answers/exercise2.sql
@@ -0,0 +1 @@
+DROP DATABASE myNewDB;
\ No newline at end of file
diff --git a/answers/exercise20.sql b/answers/exercise20.sql
index e69de29..c829a24 100644
--- a/answers/exercise20.sql
+++ b/answers/exercise20.sql
@@ -0,0 +1,3 @@
+DELETE FROM Students;
+
+// more safety net compared to TRUNCATE; identiy keys are not reset
\ No newline at end of file
diff --git a/answers/exercise3.sql b/answers/exercise3.sql
index e69de29..adba91f 100644
--- a/answers/exercise3.sql
+++ b/answers/exercise3.sql
@@ -0,0 +1,7 @@
+CREATE TABLE Users{
+    UserID int,
+    LastName varchar(255),
+    FirstName varchar(255),
+    Adress varchar(255),
+    City varchar(255)
+};
\ No newline at end of file
diff --git a/answers/exercise4.sql b/answers/exercise4.sql
index e69de29..fe6a7f5 100644
--- a/answers/exercise4.sql
+++ b/answers/exercise4.sql
@@ -0,0 +1 @@
+DROP TABLE Users;
\ No newline at end of file
diff --git a/answers/exercise5.sql b/answers/exercise5.sql
index e69de29..12321ad 100644
--- a/answers/exercise5.sql
+++ b/answers/exercise5.sql
@@ -0,0 +1 @@
+TRUNCATE TABLE Users;
\ No newline at end of file
diff --git a/answers/exercise6.sql b/answers/exercise6.sql
index e69de29..9782ded 100644
--- a/answers/exercise6.sql
+++ b/answers/exercise6.sql
@@ -0,0 +1 @@
+ALTER TABLE Users ADD Birthday DATE;
\ No newline at end of file
diff --git a/answers/exercise7.sql b/answers/exercise7.sql
index e69de29..550ea79 100644
--- a/answers/exercise7.sql
+++ b/answers/exercise7.sql
@@ -0,0 +1 @@
+ALTER TABLE Users DROP COLUMN Birthday;
\ No newline at end of file
diff --git a/answers/exercise8.sql b/answers/exercise8.sql
index e69de29..dde112e 100644
--- a/answers/exercise8.sql
+++ b/answers/exercise8.sql
@@ -0,0 +1,3 @@
+INSERT INTO Students
+(StudentName, Address, City, PostalCode, Country)
+VALUES ("Jane Doe", "57 Union St", "Glasgow", "G13RB", "Scotland");
\ No newline at end of file
diff --git a/answers/exercise9.sql b/answers/exercise9.sql
index e69de29..6292c6c 100644
--- a/answers/exercise9.sql
+++ b/answers/exercise9.sql
@@ -0,0 +1 @@
+SELECT * FROM Students WHERE NOT City = 'Philadelphia';
\ No newline at end of file