SQL VISUAL QUICKSTART GUIDE- P45 ppsx

... functions.Queries that use pre-2003 SQL are complex,unintuitive, and run slowly (see the Tips atthe end of this section for an SQL- 92 exam-ple). The SQL standard has lagged DBMSs,which for ... are top-nqueries or quota queries.The SQL: 2003 standard introducedthe functions ROW_NUMBER()andRANK()to use in limit and top-n queries.Microsoft SQL Server 2005 and later,Oracle, and ... range specifiedby an ORDER BYclause. SQL doesn’t requireanORDER BYclause, but if you omit it, thequery will return an arbitrary set of rows(because SQL doesn’t promise to deliver queryresults...

SQL VISUAL QUICKSTART GUIDE- P2 ppsx

... standard SQL that the resulting languages—Transact -SQL, PL /SQL, and SQL PL, respec-tively—can be considered to be separatelanguages in their own right, rather thanjust supersets of SQL. One ... i.1).“ISO/IEC SQL isn’t a commonly used term,so I’ll stick to the better-known “ANSI SQL name throughout this book. This book isbased on the 2003 SQL standard, so youshould consider ANSI SQL, SQL: 2003, ... Microsoft SQL Server,Oracle, DB2, MySQL, and PostgreSQL.Desktop systems include Microsoft Accessand FileMaker Pro. Note that SQL server(not capitalized) can refer to any vendor’s SQL server...

SQL VISUAL QUICKSTART GUIDE- P4 ppsx

... Tip.◆ SQL Server 2005/2008’s SQL ServerManagement Studio Query Editorreplaces 2000’s SQL Query Analyzer.◆ SQL Server 2005/2008’s sqlcmdcommand-line tool replaces 2000’sosql. The sqlcmdtool ... SELECTstatement in sqlplusscript mode. SQL Server 2000To run SQL programs in SQL Server 2000,use the SQL Query Analyzer graphical toolor the osqlcommand-line tool.To use SQL Query Analyzer:1.On ... SpecificsOracle SQL Server 2005/2008To run SQL programs in SQL Server 2005and 2008, use the SQL Server ManagementStudio graphical tool or the sqlcmdcommand-line tool.To use SQL Server ManagementStudio:1.On...

SQL VISUAL QUICKSTART GUIDE- P13 ppsx

... sensitive(‘A’ & ‘a’). Microsoft Access, Microsoft SQL Server, DB2, and MySQL performcase-insensitive comparisons by default.Oracle and PostgreSQL perform case-sensitive comparisons by default. ... #2001-01-01#.In Microsoft SQL Server and DB2 dateliterals, omit the DATEkeyword. To runListing 4.20, change the date in the WHEREclause to ‘2001-01-01’.In older PostgreSQL versions, to com-pare ... section.) SQL providesoperators that express different types of con-ditions (Table 4.1). Operators are symbolsor keywords that specify actions to performon values or other elements. SQL s comparison...

SQL VISUAL QUICKSTART GUIDE- P24 ppsx

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SQL VISUAL QUICKSTART GUIDE- P30 ppsx

... theitems in a SELECT-clause list can be literals,column names, or more-complex expressions. SQL also lets you to embed a subquery in aSELECT-clause list.A subquery that’s used as a column ... 3THEN au_idEND)AS “Author 3”FROM title_authorsGROUP BY title_idORDER BY title_id ASC;■MySQL 4.0 and earlier don’tsupport subqueries; see theDBMS Tip in “Understanding Subqueries”earlier ... them in a report or spreadsheet.See Figure 8.18 for the result. Note that ineachWHEREclause, SQL qualifies title_idimplicitly with the table alias tareferenced inthe subquery’s FROMclause;...

SQL VISUAL QUICKSTART GUIDE- P35 ppsx

... insert the out-of-range value 999999into a SMALLINTcolumn, MySQL will insert32767 (the largest SMALLINTvalue) andissue a warning. MySQL provides ERROR_FOR_DIVISION_BY_ZERO,STRICT_ALL_TABLES,STRICT_TRANS_TABLES, ... unless you’reusing transactions and can roll back theoperation. If you insert 9/0, for example,MySQL will try to insert a null ratherthan return a division-by-zero error andcomplain only if the ... optional in an INSERTstatement, but you should always includeit for portability.By default, MySQL (unfortunately) con-verts some invalid INSERTorUPDATEvaluesand issues a warning instead...

SQL VISUAL QUICKSTART GUIDE- P40 ppsx

... click Rename SQL ServerEXEC sp_rename ‘old_name’,‘new_name’OracleRENAME old_name TO new_name;DB2RENAME TABLE old_name TO new_name;MySQLRENAME TABLE old_name TO new_name;PostgreSQLALTER ... use one table as thepattern for creating another.To run Listing 11.20 in MySQL, delete thekeyword GLOBAL.PostgreSQL also lets you use SELECT INTOto define a new table from a query result ... additional actions are required byusers or SQL programmers to reflectdata changes in all relevant indexes.◆Indexes are transparent to the user and SQL programmer. The absence or pres-ence...

SQL VISUAL QUICKSTART GUIDE- P44 ppsx

... Optimizing Transact- SQL: Advanced Programming Techniques (SQL Forum Press). You can use thequeries’ common framework to createsimilar queries that find other series of values.415 SQL TricksFinding ... IDENTITYcolumns because they have other (pre- SQL: 2003) ways that define columns withunique values. See Table 3.18 in “UniqueIdentifiers” in Chapter 3. PostgreSQL’sgenerate_series()function offers ... run Listing 15.5 in MicrosoftAccess and Microsoft SQL Server, change the CASTexpression to:t1.i + t2.i + t3.i + t4.iTo run Listing 15.5 in MySQL, changethe CASTexpression to:CONCAT(t1.i,...

SQL VISUAL QUICKSTART GUIDE- P1 pps

... . 456Working with Hierarchies . . . . . . . . . . . . . . . . . . . 458Index 465 Visual QuickStart Guide SQL, Third EditionChris FehilyPeachpit Press1249 Eighth StreetBerkeley, CA 94710510/524-2178510/524-2221 ... 0-321-55357-8987654321Printed and bound in the United States of AmericaPeachpit Press VISUAL QUICKSTART GUIDE SQL Third EditionChris Fehily...

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