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Khóa học miễn phí SQL – Using DDL Statements nhận dự án làm có lương

SQL – Using DDL Statements Questions 1.What is the full form of DDL in Oracle DB? Data Deleting Language Data Definition Language Data Delegating Language Dummy Data Language Answer: B. DDL is one of the categories of SQL which stands for Data Definition Language. Other SQL types are DML, DCL, and TCL. 2.DDL statements are […]

Khóa học miễn phí SQL – Manipulating Data nhận dự án làm có lương

SQL – Manipulating Data Questions 1.What does ACID mean with respect to relational database? Accuracy, Consistency, Isolation, Database Accuracy, Concurrency, Isolation, Durability Atomicity, Consistency, Isolation, Durability Atomicity, Concurrency, Isolation, Durability Answer: C. All Oracle transactions comply with the basic properties of a database transaction, known as ACID properties. Atomicity states that all tasks of a […]