SQL PROGRAMMING STYLE- P12 ppt
SQL PROGRAMMING STYLE- P12 ppt
... following statement is the first impulse of most new SQL programmers, but it does not work. CREATE PROCEDURE IncreasePrices() LANGUAGE SQL DETERMINISTIC BEGIN UPDATE Books SET price = price ... CREATE TABLE Sequence (seq INTEGER NOT NULL PRIMARY KEY); CREATE PROCEDURE MakeSequence() LANGUAGE SQL DETERMINISTIC INSERT INTO Sequence (seq) SELECT hundred * 100 + ten * 10 + unit + 1 FR...
Ngày tải lên: 06/07/2014, 23:20
SQL PROGRAMMING STYLE- P7 ppt
... used SQL/ PSM to mimic the classic COBOL program for this kind of summary. Without repeating a dozen columns again, a set-oriented solution is this: CREATE PROCEDURE SurveySummary() LANGUAGE SQL BEGIN DELETE ... original schema lacked keys and constraints that had to be added to give us this: 10.1 Bad Programming in SQL and Procedural Languages 187 but it at least follows the...
Ngày tải lên: 06/07/2014, 23:20
SQL PROGRAMMING STYLE- P26 pptx
... table quickly collects garbage. CHAR(n) data often has advantages for access and storage in many SQL products. Numeric encodings can take advantage of arithmetic operators for ranges, check digits, ... CHECK (CASE WHEN code_type = <type 1> AND <validation 1> THEN 1 —assume that your SQL product can support a huge CASE expression WHEN code_type = <type n> 5.3 Gen...
Ngày tải lên: 06/07/2014, 23:20
SQL PROGRAMMING STYLE- P32 pptx
... example of having a column in a table change domain on the fly on September 29, 2004, on the SQL Server programming newsgroup. His goal was to keep football statistics; this is a simplification ... show about Bell Labs inventing C++ and OO programming for us, and we got to ask questions. One of the questions was how we should put OO stuff into SQL. His answer was that Bell Labs, w...
Ngày tải lên: 06/07/2014, 23:20
Tài liệu MASTERING SQL SERVER 2000- P12 ppt
... this with tape devices, you need more than one local tape drive in the SQL Server machine. BACKING UP YOUR DATA Administering SQL Server PART IV 2627ch16.qxt 8/22/00 10:58 AM Page 591 Please purchase ... remove this watermark. Administering SQL Server PART IV LEARN TO: • Perform basic administrative tasks • Automate administration • Provide security in SQL Server 2000 2627ch16.qxt 8/...
Ngày tải lên: 21/01/2014, 08:20
Tài liệu Oracle PL/SQL by Example- P12 pptx
... make use of the PLAN_TABLE. SQL& gt; CONN sys/password AS SYSDBA Connected SQL& gt; @$ORACLE_HOME/rdbms/admin/utlxplan .sql SQL> GRANT ALL ON sys.plan_table TO public; SQL& gt; CREATE PUBLIC SYNONYM ... package DBMS_JOB allows you to schedule the execution of a PL /SQL procedure. It was introduced in PL /SQL version 2.2. DBMS_JOB is an Oracle PL /SQL package provided to users. A job...
Ngày tải lên: 26/01/2014, 08:20
sql programming style - apr 2005
... programmers. My goals in this book are to improve SQL programming style and proficiency. To be more exact: 1. To help an individual programmer write Standard SQL without an accent or a dialect . ... other SQLs, cannot be easily understood by an end user, and cannot be expanded. In the second case, what some newbies, who are still thinking in terms of second- and third-generati...
Ngày tải lên: 10/04/2014, 09:40
