随笔分类 - DB2
摘要：源地址：http://www.cnblogs.com/SuperXJ/p/3480929.html 数据复制技术很多，初步比较如下。 后面重点讨论银行最常用的存储复制和数据库复制。。当然，我最推荐的还是应用方式。。只有应用做好了才能做到真正的多活应用！！！银行需要加大研发力度， 摆脱厂商的束缚，长远
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摘要：SQL statements This topic contains tables that list the SQL statements classified by type. SQL schema statements (Table 1) SQL data change statements
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摘要：With static SQL, host variables used in embedded SQL statements are known at application compile time. With dynamic SQL, the embedded SQL statements a
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摘要：The FETCH statement positions a cursor on the next row of its result table and assigns the values of that row to target variables. Invocation Although
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摘要：DECLARE CURSOR statement The DECLARE CURSOR statement defines a cursor. Invocation Although an interactive SQL facility might provide an interface tha
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摘要：Declare section for host variables in C and C++ embedded SQL applications You must use an SQL declare section to identify host variable declarations.
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摘要：The PREPARE statement creates an executable SQL statement from a string form of the statement. The character-string form is called a statement string.
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摘要：An informational constraint is a constraint attribute that can be used by the SQL compiler to improve the access to data. Informational constraints ar
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摘要：在Z上和开放平台上的创建方法还不太一样，两套人马开发出来的就是牛！ 蛋疼…… 贴不同类型的几个例子感受一下，Z上的ASC，DESC不见了：
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摘要：Rotating partitions You can use the ALTER TABLE statement to rotate any logical partition to become the last partition. Rotating partitions is support
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摘要：my $label = defined($pieces[0]) ? $pieces[0] : "";my @alreadyAddedCol = $node1->{DB}->getValues("select count(*) from sysibm.syscolumns where tbname=\
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摘要：http://www.ibm.com/support/knowledgecenter/SSEPEK_10.0.0/com.ibm.db2z10.doc.sqlref/src/tpc/db2z_catalogtablesintro.html DSNDOB01 (N) DSNDOB02 (N) DSND
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摘要：BIND and REBIND options for packages and plans There are several options you can use for binding or rebinding plans and packages. Some of the options
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摘要：https://www.ibm.com/support/knowledgecenter/SSEPGG_10.5.0/com.ibm.db2.luw.apdv.embed.doc/doc/c0005563.html Binding embedded SQL packages to a database
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摘要：When a table column is defined with the implicitly hidden attribute, that column is unavailable unless it is explicitly referenced. For example, if a
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摘要：现已有一行数据，要复制为多行，每行只有两个字段值不同，db2 没有sql server的top关键字，本只想复制几次，然后update逐条数据，发现不行。 然后想到不如临时创建一张表B，插入此行数据，然后不断修改B再插入A. DB2复制表结构： create table table_name_new
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摘要：这个困扰了我两天的问题终于解决了，在运行这个job时：总是提示 一直在努力找为什么这两个DD不存在，明明是默认的好吗，加上对JCL以及主机Z不熟悉，导致一直认为这应该用的是系统配置好的data set。 直到今天下午，仔细看了描述，觉得应该是用来存放东西的，虽然有些描述看不懂，但试着自己创建了一下。
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摘要：An identity column contains a unique numeric value for each row in the table. DB2® can automatically generate sequential numeric values for this colum
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摘要：可以创建在任何表上的索引： Unique Index:An index that ensures that the value in a particular column or set of columns is unique. Primary index:A unique index on th
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摘要：查看DB2版本： db2level 创建instance： 进入安装目录instance文件夹，db2icrt -u ${USR} ${USR} 由于instance多和系统用户关联，直接用系统用户名称 删除instance： db2idrop ${NAME} 列出所有instance： db2il
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