[ http://issues.apache.org/jira/browse/DERBY-2002?page=comments#action_12445417 ] Yip Ng commented on DERBY-2002: -------------------------------
Right, an implementation is free to have their own proprietary syntax. However, in 6.3.3.2 of ISO/IEC 9075-1 6.3.3.2, it also states that: "If any condition required by Syntax Rules is not satisfied when the evaluation of Access or General Rules is attempted and the implementation is neither processing non-conforming SQL language nor processing conforming SQL language in a nonconforming manner, then an exception condition is raised: syntax error or access rule violation." So to be conformant, an exception should be raised. > Case expression allows NULL in all parts of <result> > ---------------------------------------------------- > > Key: DERBY-2002 > URL: http://issues.apache.org/jira/browse/DERBY-2002 > Project: Derby > Issue Type: Bug > Components: SQL > Affects Versions: 10.2.1.6, 10.3.0.0 > Environment: Any > Reporter: Yip Ng > > According to the SQL:2003 spec, section 6.11 <case expression> Syntax Rule 3. > At least one <result> in a > <case specification> shall specify a <result expression>. Derby currently is > violating this rule. e.g.: > ij> values case when 1=2 then NULL when 1=3 then NULL else NULL end; > 1 > ---- > NULL > 1 row selected > The above statement should have thrown a SQLException instead of returning a > result. > sysinfo: > ------------------ Java Information ------------------ > Java Version: 1.4.2_12 > Java Vendor: Sun Microsystems Inc. > Java home: C:\jdk142\jre > Java classpath: classes;. > OS name: Windows XP > OS architecture: x86 > OS version: 5.1 > Java user name: yip > Java user home: C:\Documents and Settings\Administrator > Java user dir: C:\derby\trunk > java.specification.name: Java Platform API Specification > java.specification.version: 1.4 > --------- Derby Information -------- > JRE - JDBC: J2SE 1.4.2 - JDBC 3.0 > [C:\derby\trunk\classes] 10.3.0.0 alpha - (1) > ------------------------------------------------------ > ----------------- Locale Information ----------------- > Current Locale : [English/United States [en_US]] > Found support for locale: [de_DE] > version: 10.3.0.0 alpha - (1) > Found support for locale: [es] > version: 10.3.0.0 alpha - (1) > Found support for locale: [fr] > version: 10.3.0.0 alpha - (1) > Found support for locale: [it] > version: 10.3.0.0 alpha - (1) > Found support for locale: [ja_JP] > version: 10.3.0.0 alpha - (1) > Found support for locale: [ko_KR] > version: 10.3.0.0 alpha - (1) > Found support for locale: [pt_BR] > version: 10.3.0.0 alpha - (1) > Found support for locale: [zh_CN] > version: 10.3.0.0 alpha - (1) > Found support for locale: [zh_TW] > version: 10.3.0.0 alpha - (1) > ------------------------------------------------------ -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
