</insert> 对于Oracle不支持主键自增,需要序列替换,所以在SQL写法上略有不同,需要在insert语句前加个 <selectKey>...</selectKey>告知Mybatis主键如何生成(selectKey中间的内容有省略,实际是生成主键的SQL)。 (2)批量更新 <update id="batchUpdate" parameterType="java.util.List"> <foreach close="" collectio...
二. 索引的存储情况检查 Oracle为数据库中的所有数据分配逻辑结构空间。数据库空间的单位是数据块(block)、范围(extent)和段(segment)。 Oracle数据块(block)是Oracle使用和分配的最小存储单位。它是由数据库建立时设置的DB_BLOCK_SIZE决定的。一旦数据库生成了,数据块的大小不能改变。要想改变只能重新建立数据库。...
UpdateColumnSourceDetails @Deprecated @ConstructorProperties(value={}) protected UpdateColumnSourceDetails() Deprecated. Method Detail toString public String toString() Overrides: toString in class com.oracle.bmc.http.client.internal.ExplicitlySetBmcModel toString public String toString(boolean includeByteA...
Specifying DEFAULT for the update value sets the value of the column to the default defined for that table. The DEFAULT literal is the only value which you can directly assign to a generated column. Whenever you alter the value of a column referenced by thegeneration-clauseof a generated colu...
Security vulnerabilities addressed by this Critical Patch Update affect the products listed below. The product area is shown in the Patch Availability Document column.Please click on the links in the Patch Availability Document column below to access the documentation for patch availability information ...
Security vulnerabilities addressed by this Critical Patch Update affect the products listed below. The product area is shown in the Patch Availability Document column.Please click on the links in the Patch Availability Document column below to access the documentation for patch availability information ...
columnName String 字段名 columnCnName String 字段中文名 businessDefine String 业务 primaryKey Boolean 是否主键 securityLevel String 安全等级 dataClassification String 数据类别 columnType String 字段类型 columnSize String 字段size columnPrecision String 字段precision columnFormat String 字段格式 unit String 度...
Also, Tables with Composite Keys have no Identity column, so no functionality for them in that case either.var bulkConfig = new BulkConfig { SetOutputIdentity = true, BatchSize = 4000 }; context.BulkInsert(entities, bulkConfig); context.BulkInsertOrUpdate(entities, new BulkConfig { SetOutput...
The alias is used as the expression’s column name and can be used with ORDER BY or HAVING clauses. For example: mysql> SELECT CONCAT(last_name,', ',first_name) AS full_name FROM mytable ORDER BY full_name; You cannot use a column alias in a WHERE clause because the column value...
at oracle.apps.fnd.framework.server.OAApplicationModuleImpl.invokeMethod(OAApplicationModuleImpl.java:797) ... ...## Detail 0 ##java.sql.SQLException: Invalid column indexat oracle.jdbc.driver.OracleCallableStatement.getInt(OracleCallableStatement.java:1476)at oracle.jdbc.driver.OracleCallableStatement...