features of structured query language
Chương 3 Structured Query Language Phần 1
... pháp: UPDATE Tênbảng SET col1 = giátri1 [, col2 = giátri2,… ] [WHERE điềukiện] Chương 3 SQL Structured Query Language Phần 1 Giới thiệu SQL là ngôn ngữ CSDL Quan hệ chuẩn Được sử dụng trong ... SELECT, INSERT, UPDATE, DELETE Lệnh Select là lệnh thường dùng nhất Dùng để truy vấn dữ liệu (query data) Lấy và hiển thị dữ liệu từ một hay nhiều bảng Lệnh Select - Mệnh đề Where Sử ... Nhanvien As T, Nhanvien As S Where T.Luong > S.Luong And S.Chucvu like ‘trưởng phòng’ Dùng subQuery: Select Manv From Nhanvien Where Luong >Any (Select Luong From Nhanvien Where Chucvu like...
Ngày tải lên: 12/05/2014, 11:52
Chương 3 Structured Query Language Phần 2
... trên cột], …. Têncột_n Kiểudữliệu [not null] [unique] [RBTV trên cột], [RBTV bảng] ) SQL Structured Query Language Phần 2 Chương 3 Tạo cấu trúc bảng CREATE TABLE KHACHHANG ( MAKH nvarchar(10) ... NULL, THANHPHO nvarchar(50) NOT NULL, DIENTHOAI nvarchar(50) NULL ) Nội dung DDL (Data Definition Language) Định nghĩa Database Định nghĩa cấu trúc Bảng Định nghĩa ràng buộc toàn vẹn Định...
Ngày tải lên: 12/05/2014, 11:52
Structured Query Language
... Introduction SQL stands for Structured Query Language. ” SQL stands for Structured Query Language. ” SQL is a language used to interact with the database. SQL is a language used to interact with ... from the right table. Subquery Subquery is query within a query. A SELECT statement Subquery is query within a query. A SELECT statement can be nested inside another query to form a can be ... characters of different language like Japenese , chinese characters of different language like Japenese , chinese etc. etc. Number of characters it can store depend on language. Number of characters...
Ngày tải lên: 12/05/2014, 11:55
bài 4 sql (structured query language)
... hoặc sử dụng chữ hoa 22 TRƯỜNG ĐẠI HỌC KHOA HỌC TỰ NHIÊN TP.HCM TRUNG TÂM TIN HỌC SQL (STRUCTURED QUERY LANGUAGE) 4 1212 TRƯỜNG ĐẠI HỌC KHOA HỌC TỰ NHIÊN TP.HCM TRUNG TÂM TIN HỌC Sử dụng các...
Ngày tải lên: 23/05/2014, 18:24
SQL (Structured Query Language) (tiếp theo) docx
... 'laptop'; 4 EE4509, EE6133 – HK2 2011/2012 TS. Đào Trung Kiên – ĐH Bách khoa Hà Nội SQL (Structured Query Language) (tiếp theo) 1 EE4509, EE6133 – HK2 2011/2012 TS. Đào Trung Kiên – ĐH Bách...
Ngày tải lên: 28/06/2014, 05:20
Tài liệu Language Features of Java Generics pptx
... overview of Java Generics, a new language feature that will be supported in the upcoming release of Java 2 Platform, Standard Edition 1.5. The first installment—" ;Language Features of Java ... family of subtypes of type Number; "? super Integer" is the family of supertypes of type Integer; and "?" is the set of all types. Correspondingly, the wildcard instantiation of ... result of translation by erasure. Exploration We've provided an overview of all major language features related to parameterized types and methods. Naturally, coverage of a fairly complex language...
Ngày tải lên: 10/12/2013, 02:15
Báo cáo khoa học: "Discovering the Lexical Features of a Language" pot
... number of times b follows a in the corpus. 2. Divide this value by the number of times a occurs in the corpus. Such a model is clearly insufficient for expressing the grammar of a natural language. ... this class may expand into the class of all nouns. Once word classes are found, lexical features can be extracted by assuming that there is a feature of the language which accounts for each word ... results and see that the lexical features found seem to be correct, but how can we judge that the features are indeed the correct ones? How can one set of hypothesized features mean- ingfully be...
Ngày tải lên: 17/03/2014, 08:20
A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 2
... characteristics 20 4.3 A study of discourse structure and some major linguistic features of the International Convention on Human Rights in comparison with those of the International Declaration ... Use of Grammar 26 a1. Modality 26 a2. Use of Active/ Passive voices 27 a3. Sentence order 27 a4. Length of sentences 27 a5. Kinds of sentences 28 b. Use of vocabulary 28 b1. Archaic words and phrases ... Conventions in terms of discourse structures and major linguistic features 5.1 Similarities 32 a, Type of discourse 32 b, Register (or Functional style) 32 c, Writing style 32 d, Linguistic features 33 e,...
Ngày tải lên: 07/11/2012, 14:17
A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 3
... witness thereof" appears in most Endings of Conventions. This old form might internationally be a source of confusion because of the meaning of the word "witness". People often blame ... insights into the problems and processes of language use and language learning, and is therefore of great importance to language teachers. Traditionally, language teaching has concentrated on ... the signature of the Members of the Council of Europe. It shall be ratified. Ratifications shall be deposited with the Secretary-General of the Council of Europe. (Articles 59.1 of European Convention...
Ngày tải lên: 07/11/2012, 14:17
A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 4
... largest number of votes and an absolute majority of the votes of the representatives of States Parties present and voting. 6. The members of the Committee shall be elected for a term of four years. ... proclaimed in the Charter of the United Nations, recognition of the inherent dignity and of the equal and inalienable rights of all members of the human family is the foundation of freedom, justice ... freedoms of others. Article 15 1. States Parties recognize the rights of the child to freedom of association and to freedom of peaceful assembly. 2. No restrictions may be placed on the exercise of...
Ngày tải lên: 07/11/2012, 14:17
A study on the techniques for the improvement to the teaching of oral skills in light of communicative english language teaching for junior high school teachers in quang ngai province part 1
... teaching of the four language skills that acknowledge the interdependence of language and communication. 1.3.2. Principles According to Richard, J. C. and Rodgers, T. S., Communicative Language ... students. What the students hear is usually out of their control and often unclear. Their knowledge of situations and topics help them make sense of it. Using English in the classroom as much ... presents an overview of the definitions of techniques, methods, approaches and a history of methods/approaches, and also introduces the definition, principles and techniques of the communicative...
Ngày tải lên: 07/11/2012, 14:41