Here are some examples of Oracle alter table syntax to modify data columns and note that you can add constraints like NOT NULL: ALTER TABLE customer MODIFY (cust_name varchar2(100) not null, cust_hair_color varchar2(20)) ; We can also use Oracle alter table syntax in dynamic PL/SQL to modify data columns.
Irena Sendler (nÃ©e KrzyÅ¼anowska, also referred to as Irena Sendlerowa in Poland, Nom de guerre Jolanta; 15 February 1910 â 12 May 2008) was a Polish Roman Catholic nurse/social worker who served in the Polish Underground during World War II, and as head of children's section of Å»egota, an underground resistance organization in German-occupied Warsaw ...
Life in a Jar. Meet the Hero: Irena Sendler. âIf you see someone drowning, you must jump in to save them, whether you can swim or not.â Irena Sendler was just 7 years old when her father spoke those words. A doctor, he had contracted typhus while caring for poor Jewish people afflicted by the epidemic in their small Polish town. Irenaâs father died shortly thereafter, but like him, she would devote her life to saving othersâincluding more than 2,500 Jewish children during WWII. Irena was born in 1910 and grew up an only child in the Polish town of Otwock.