Teradata join 1.SELECT Statement ANSI Join Syntax版本V2R2以后,Teradata支持ANSI join语法及外连接: SELECT colname [, colname ,…] FROM tabname [aname] [INNER] JOIN LEFT [OUTER] JOIN RIGHT [OUTER] JOIN FULL [OUTER] JOIN CROSS JOIN tabname1 [aname] ON condition ; INNER JOIN:所有匹配的...
Teradata高级文档.doc,Tera Blog 收藏 Teradata SQL调优 1.优化过程:依照运行时间,数据量和复杂度来定位瓶颈。 查看sql执行计划,判断其合理性。 性能监控 ==》目标选取 ==》性能分析 ==》过程优化 ==》运行跟踪(性能监控) 注意:每个过程中都会产生必须的文档 2.性能分
原地址:http://blog.chinaunix.net/uid-22953591-id-2600054.htmlTeradatajoin1.SELECT Statement ANSI Join Syntax版本V2R2以后,Teradata支持ANSI join语法及外连接:SELECT colname [, colname , …]FROM tabname [aname][IN tables Teradata 转载精选 ...
EN// 方式一：BigDecimal方式 double f = 3.1315; BigDecimal b = new BigDecimal(new Double(f)...
原地址:http://blog.chinaunix.net/uid-22953591-id-2600054.htmlTeradatajoin1.SELECT Statement ANSI Join Syntax版本V2R2以后,Teradata支持ANSI join语法及外连接:SELECT colname [, colname , …]FROM tabname [aname][IN tables Teradata 转载精选 ...
*/ ( i_param TEXT ) RETURN INTEGER AS v_castasint INTEGER; BEGIN v_castasint := CASE WHEN i_param IS NULL THEN NULL -- if NULL value is provided as input WHEN TRIM(i_param) IS NULL THEN 0 -- if empty string with one or more spaces is provided ELSE TRUNC(CAST(i_param AS NUM...
The PLACEHOLDER token is case-sensitive and must be specified in uppercase.• On Windows, the default command is cmd /c start "title" "PLACEHOLDER". Windows command syntax requires the quoted title to precede the quoted URL.• On macOS, the default command is open PLACEHOLDER. macOS ...
If you set theHS_FDS_RESULTSET_SUPPORTgateway initialization parameter, you must change the syntax of the procedure execute statement for all existing stored procedures or errors will occur. When accessing stored procedures with result sets through the Oracle Database Gateway for Teradata, you will ...
SQL Syntax SQL*Plus Database Links Stored Procedures Note: If you have any questions or concerns about the restrictions, contact Oracle Support Services. 3.3.1 Transactional Integrity The gateway cannot guarantee transactional integrity in the following cases: When a statement that is processed ...
All syntax, both ANSI and Teradata extensions, is accepted in either mode. The same syntax might function differently in each mode. –Transaction protocol behavior –CREATE TABLE SET or MULTISET default –Case sensitivity and collating sequences ...