SCOTT@PROD>insert into test select*from emp;SCOTT@PROD>commit;SCOTT@PROD>analyze table test compute statistics;SCOTT@PROD>select table_name,blocks,empty_blocks from user_tables where table_name='TEST'; 直接路径插入 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SCOTT@PROD>insert/*+append*/...
OPTIONS (skip=1,rows=128)-- sqlldr 命令显示的选项可以写到这里边来,skip=1用来跳过数据中的第一行LOAD DATAINFILE"users_data.csv"--指定外部数据文件,可以是不同格式的数据文件,如csv、txt都支持可以写 多个INFILE"another_data_file.csv"指定多个数据文件truncate--操作类型,用 truncate table 来清除表中原...
public static string DataTableToSQL(DataTable dataTable, DataTableToSQLType tpye, string SQLWhere = null) { if (dataTable.TableName == "" ||
CREATETABLE`Order`(idINT,product_idINT,quantityINT,order_timeTIMESTAMP(3),PRIMARYKEY(id)NOTENFORCED,WATERMARKFORorder_timeASorder_time)WITH('connector'='datagen','fields.id.kind'='sequence','fields.id.start'='1','fields.id.end'='100000','fields.product_id.min'='1','fields.product_id....
delta.appendOnly:設定為true以停用UPDATE和DELETE作業。 delta.dataSkippingNumIndexedCols: Set to the number of leading column for which to collect and consider statistics. delta.deletedFileRetentionDuration:設置為間隔時間,例如'interval 7 days'以控制何時允許刪除檔案VACUUM。
简单的 CREATE TABLE 语法(如果不使用选项,则很常见): syntaxsql 复制 CREATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } ( { <column_definition> } [ ,... n ] ) [ ; ] 完整语法 基于磁盘的 CREATE TABLE 语法: syntaxsql 复制 CREATE TABLE {...
修改受限的實體屬性範圍包括:新增直欄、變更直欄或變更下列其中一項值:data capture、value compression、append、compact、logged、activate not logged initially。 使用者回應 識別需要漸進式維護的相依表格,並針對這些相依表格發出使用 IMMEDIATE CHECKED 選項的 SET INTEGRITY 陳述式,然後重新發出失敗的 ALTER TABLE ...
LOAD DATA INFILE 'd:/equip.dat' APPEND INTO TABLE scott.test (q1 position(01:05) char, q2 position(06:10) char, q3 position(11:29) date(19) "dd/Mon/yyyy:hh24:mi:ss") 数据文件: aaaaaxxxxx05/05/2005:01:01:01 bbbbbyyyyy05/06/2005:01:01:02 ...
@TableField(value = "table_name") private String tableName; //表注释 @TableField(value = "table_comment") private String tableComment; //数据库名 @TableField(value = "db_name") private String databaseName; //数据库类型 ORACLE,MSSQL,MYSQL ...
You can use the following custom SQL query to append the second table, December, to the first table, November: SELECT * FROM November UNION ALL SELECT * FROM December The result of the query looks like this in the data grid: For more information about the union option, see Union Your D...