sams teach yourself sql in 21 days
Teach yourself SQL in 21 days
... now using a relational database. You have seen terms like SQL, tables, records, queries, and RDBMS, but you don't remember Teach Yourself SQL in 21 Days, Second Edition - Day 2 -Introduction ... SELECT into your system, you might get the following response:INPUT: SQL& gt; SELECT;OUTPUT:SELECT *ERROR at line 1:ORA-00936: missing expressionThe asterisk under the offending line indicates ... calculations in a SELECT statement. Modulo (%)The modulo operator returns the integer remainder of the division operation. Using the table REMAINS, type the following:INPUT: SQL& gt; SELECT...
- 679
- 413
- 1
Teach Yourself C in 21 Days pdf
- 670
- 1,170
- 1
Teach Yourself PL/SQL in 21 Days- P16
... 11 SQL- Programmer (SylvainFaust Inc.), 11 SQL- Station (PlatinumTechnology Inc.), 11SQLCODE function, 160, 211 -212 SQLERRM function, 160, 211 -212 SQLJ, calling PL /SQL fromJava, 578-579calling ... creating, 54creating (security exam-ple), 538-539data integrity (maintain-ing), 300-304listing, 302defining, 299-300, 313,319delete, 296enabling/disabling,310-311event, 311-312defining, ... 143loops, 121 CURSOR FOR, 254debugging, 136FOR, 121- 122, 146common errors, 124EXIT statement, 140listing, 121 nesting, 121 guidelines, 147incrementing through,123-124listing, 123infinite,...
- 15
- 358
- 0
Teach Yourself PL/SQL in 21 Days- P1
... Compatibility 574Using the OUTand IN OUTArguments 575Calling PL /SQL from Java Using SQLJ 578Using SQLJ to Execute an Anonymous PL /SQL Block 578Using SQLJ to Call a PL /SQL Procedure or Function ... exciting new product. PL /SQL is an excellent language to use for databaseprogramming. We hope that you enjoy learning about both as you read this book.4 Sams Teach Yourself PL /SQL in 21 Days, ... using the SQL* Plus @command.•Use the SQL* Plus EDITcommand.The first method involves running Windows Notepad, typing your PL /SQL code (or SQL queries) into it, and then copying and pasting from...
- 50
- 367
- 0
Teach Yourself PL/SQL in 21 Days- P2
... Anested anonymous block begins on line 14 and ends on line 21. Lines 6 through 9 definethename_printprocedure.The variable a_nameis declared in the outermost block (see line 4), thus any nestedblock, ... watermark.Writing Declarations and Blocks 492Using Block StructureOn Day 1, “Learning the Basics of PL /SQL, ” you saw that the fundamental programmingstructure in PL /SQL is referred to as a block. In ... watermark.Writing Declarations and Blocks 59222:23: DBMS_OUTPUT.PUT_LINE(‘Back in the main block’);24:25: But we cannot compile the following line because b_name26: is not defined in this block.27:...
- 50
- 361
- 0
Teach Yourself PL/SQL in 21 Days- P3
... typing the keyword BEGIN:BEGINBecause you are not performing anything in this function except returning a value, youwill code a NULLstatement, which is discussed later in this lesson in ... When I am comparing strings, especially when comparing a CHARstring to aVARCHAR2string, is there a convenient way to tell PL /SQL to ignore any trail-ing spaces in the CHARstring?A Yes. Use ... longer string and then does the comparison. Trailing spaces alonewill not result in any differences being found between two springs. Oracle also does thesame thing when comparing two string constants....
- 50
- 334
- 0
Tài liệu Teach Yourself PL/SQL in 21 Days- P4 pptx
... ending semicolon for the one-line SQL listings. If you areentering at the prompt, the semicolon performs the SQL statement, similarto using a /to execute the code.NoteLISTING6.8ConvertingDATEto ... about using this example as a PL /SQL procedure and returning to the good old days of BC? Listing 6.9 shows another example of using TO_CHARwith converting and format-ting dates. LISTING6.9ConvertingDATEto ... (inverse) cosine of a number, expressed in radians.ASINReturns the arc (inverse) sine of a number, expressed in radians. ATANReturns the arc (inverse) tangent of a number (x), expressed in...
- 50
- 392
- 0
Tài liệu Teach Yourself PL/SQL in 21 Days- P5 doc
... resulting month does not have as many days. (Forexample, April 30th is the answer to adding one month.) The following three examples in Listing 6 .21 provide the same result.LISTING6 .21 Adding ... ONcommand at the SQL* Plus prompt. The code in Listing 7.2 illustrates the PUT_LINEcommand line that you can includeinside a procedure.LISTING7.2ThePUT_LINECommand Within a ProcedureCREATE ... left in the given month.LAST_DAY(input_date_passed) You will compute the last days in the month when summer officially starts from 1999.Execute the code in Listing 6.27.LISTING6.27Finding...
- 50
- 292
- 0
Tài liệu Teach Yourself PL/SQL in 21 Days- P6 docx
... containing any of the following:OPEN stock_listing_cur (stock_listing.name, ‘ABCDEFG’);OPEN stock)listing_cur (stock_listing_name, stock_listing_price);Fetching Data in a CursorYou get data into ... IF;29: END;30: /Line 12 places a value into the table associated with the index value 10. Thereare no other values in the table. Line 17, inside the nested PL /SQL block (lines16 21) , attempts ... numberListing 8.4 shows the PL /SQL anonymous block that you can run to insert the necessarydata.LISTING8.4Inserting Records with PL /SQL CodeDECLARE insert department data firsti_dept_id INTEGER,i_dept_name,BEGININSERT...
- 50
- 410
- 0
Tài liệu Teach Yourself PL/SQL in 21 Days- P7 ppt
... imagina-tion. Some common uses are• Enforcing business rules• Maintaining referential integrity• Enforcing security• Maintaining a historical log of changes• Generating column values, including ... trigger.Lines 17–19 define a record containing the primary key fields for the emp_depttable.This record in turn is used to define a PL /SQL table type (lines 23–24). Finally, in line27, a PL /SQL ... read in. 13: depts dept_table;14: depts_max PLS_INTEGER;15: inx1 PLS_INTEGER;16: BEGIN17: Initialize the index into the table.18: depts_max := 0;19:20: Initialize the table by creating...
- 50
- 368
- 0
Tài liệu Teach Yourself PL/SQL in 21 Days- P8 pptx
... (SELF IN building,8: OtherBuilding IN building)9: RETURN INTEGER10: );11: /12: CREATE OR REPLACE TYPE BODY building AS13: MEMBER PROCEDURE ChangeMgr(SELF IN OUT building,14: NewMgr IN INTEGER) ... in Listing 12.8 in order to insert a few buildingobjects.These will be used in later examples that show how to update object tables and how tolink objects in the database.LISTING12.8Inserting ... object-oriented methods in your software development projects. Storing Objects in an Object TableYou can insert information about buildings into the object table you just created by usinga SQL INSERTstatement....
- 50
- 360
- 0
- sams teach yourself c in 21 days
- sams teach yourself c in 21 days fifth edition 5th edition
- sams teach yourself c in 21 days download
- sams teach yourself c in 21 days fifth edition pdf
- sams teach yourself c in 21 days fifth edition
- sams teach yourself c in 21 days sixth edition
- sams teach yourself c in 21 days 6th edition free download
- sams teach yourself c in 21 days 6th edition pdf
- sams teach yourself c in 21 days free download
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến dòng điện stato i1 fi p2 thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25