Update README.md

README.md

@@ -251,3 +251,89 @@ Following are some of the most commonly used constraints available in SQL −
 ### SQL DISTINCT Clause
     SELECT DISTINCT column1, column2....columnN
     FROM   table_name;
+
+### SQL WHERE Clause
+    SELECT column1, column2....columnN
+    FROM   table_name
+    WHERE  CONDITION;
+SQL AND/OR Clause
+SELECT column1, column2....columnN
+FROM   table_name
+WHERE  CONDITION-1 {AND|OR} CONDITION-2;
+SQL IN Clause
+SELECT column1, column2....columnN
+FROM   table_name
+WHERE  column_name IN (val-1, val-2,...val-N);
+SQL BETWEEN Clause
+SELECT column1, column2....columnN
+FROM   table_name
+WHERE  column_name BETWEEN val-1 AND val-2;
+SQL LIKE Clause
+SELECT column1, column2....columnN
+FROM   table_name
+WHERE  column_name LIKE { PATTERN };
+SQL ORDER BY Clause
+SELECT column1, column2....columnN
+FROM   table_name
+WHERE  CONDITION
+ORDER BY column_name {ASC|DESC};
+SQL GROUP BY Clause
+SELECT SUM(column_name)
+FROM   table_name
+WHERE  CONDITION
+GROUP BY column_name;
+SQL COUNT Clause
+SELECT COUNT(column_name)
+FROM   table_name
+WHERE  CONDITION;
+SQL HAVING Clause
+SELECT SUM(column_name)
+FROM   table_name
+WHERE  CONDITION
+GROUP BY column_name
+HAVING (arithematic function condition);
+SQL CREATE TABLE Statement
+CREATE TABLE table_name(
+column1 datatype,
+column2 datatype,
+column3 datatype,
+.....
+columnN datatype,
+PRIMARY KEY( one or more columns )
+);
+SQL DROP TABLE Statement
+DROP TABLE table_name;
+SQL CREATE INDEX Statement
+CREATE UNIQUE INDEX index_name
+ON table_name ( column1, column2,...columnN);
+SQL DROP INDEX Statement
+ALTER TABLE table_name
+DROP INDEX index_name;
+SQL DESC Statement
+DESC table_name;
+SQL TRUNCATE TABLE Statement
+TRUNCATE TABLE table_name;
+SQL ALTER TABLE Statement
+ALTER TABLE table_name {ADD|DROP|MODIFY} column_name {data_ype};
+SQL ALTER TABLE Statement (Rename)
+ALTER TABLE table_name RENAME TO new_table_name;
+SQL INSERT INTO Statement
+INSERT INTO table_name( column1, column2....columnN)
+VALUES ( value1, value2....valueN);
+SQL UPDATE Statement
+UPDATE table_name
+SET column1 = value1, column2 = value2....columnN=valueN
+[ WHERE  CONDITION ];
+SQL DELETE Statement
+DELETE FROM table_name
+WHERE  {CONDITION};
+SQL CREATE DATABASE Statement
+CREATE DATABASE database_name;
+SQL DROP DATABASE Statement
+DROP DATABASE database_name;
+SQL USE Statement
+USE database_name;
+SQL COMMIT Statement
+COMMIT;
+SQL ROLLBACK Statement
+ROLLBACK;