/gravity /center ">Found two commands together, namely student and where are connected together. So when you use the a command to add a command to the buffer to hit two return, the first carriage return is a command must take the carriage return, the second carriage return is added as the beginning of the new code to the buffer, for example:Q: Suppose the buffer has 3 rows of SQL commands, you need to join the command on the second line. How does it work?A: The list command lists the buffer comm
In oracle, INSERT corresponds to the LOCATE function usage in db2. The SQL code www.2cto.com eg: SELECT CONCAT (FIRST_NAME, LAST_NAME) FROM T1 eg: SELECT CONCAT (FIRST_NAME, LAST_NAME) FROM T1 INSERT function Syntax: the INSERT (ARG1, POS, SIZE, ARG2) function returns a string, which deletes the SIZE of ARG1 from the P
Oracle is only available, not very familiar with it. It is too difficult to insert data slowly to test a data.
Some materials found on the internet, combined with the actual situation, have been successfully tested. Below are some
Code.
DeclareI number;/* define a variable I */BeginForKIn 600 .. 610/* from 600 to 610 10 cycles */LoopI: = dbms_random.random;/* assign an I value */
Tags: hbm view setup mic add str pos RAC Hbm.xmlReference content:Http://blog.sina.cn/dpool/blog/s/blog_90629d5301014a5w.htmlThe default value for a field in the database is 1, but after inserting the data, the field is empty and the value should be 1, but the actual value is empty.Looking at the output statements in the log, when inserting the change data, the INSERT statement is executed first, then the UPDATE statement is executed, and the value is
The parameter passed in as long as the parameter of the list type is OK ... 1, BULK Insert insert into T_city_index ( I D,city_code ) Select Seq_city_index. nextval,cd.* from ( Select #{item.citycode,jdbctype=varchar}, #{item.cityname,jdbctype=varchar} F Rom dual ) CD 2, batch with new Update T_city_index T Set t.city_name= #{item.cityname,jdbctype=varchar}, T.district_name= #{item.dist
Insert data into the database (ORACLE) through excel
We all know that PL/SQL can copy data to excel, and we can also insert data to the database through excel.
The following is a simple example and example.
First, create a table named test.
Create table test (
Id NUMBER
);
Run the following statement:
SELECT * FROM test for update;
And click the lock
Oracle does not have the date () function. The sysdate function value includes the time, minute, and second. It is really troublesome to insert the default value of the current time.
You have to write the stored procedure on your own, and you cannot call the stored procedure in the field default value. You have to write a trigger! The first few digits of sysdate obtained during the storage process are only
I personally disagree with the insert into select method for large data volumes, and the reality is not, I used the Oracle stored procedure to write the batch Insertion Method of insert into select with a large amount of data. The Code is as follows:
Create or replace procedure largedata_insert (ip_table_name in varchar2, -- target table
The code above means
C # insert clob field type data into Oracle databases,
Public static void InsertWithLob (OracleConnection conn){If (conn! = Null conn. State = ConnectionState. Open){Try{String sqlText = "insert into tb_nclob (id, name, text) values (1, 'test',: text )";Using (OracleCommand cmd = new OracleCommand (sqlText, conn )){OracleParameter oracleParameter = new OraclePar
Quickly insert million data in Oracle
Create a table
Create table TX_TEST (id number not null, NAME VARCHAR2 (200), URL VARCHAR2 (300), POSITION VARCHAR2 (200), createtime date)
Write scripts
Declare -- Local variables here count integer; begin -- Test statements here dbms_output.put_line ('start: '| sysdate); for count in 1 .. 1000000 loop insert into
Label:Requirements: Insert query data from one table into another table --Created on 2016/10/13 by RICKDECLARE
--Local variables here
begin
forIteminch(SelectT.* fromZc_tr_order_currency TwhereT.sys_corder_code='101303002') LoopInsert intozc_tr_appraise (Id,cash_code,user_id,user_name, Appr_type,appr_result,flask_type,rate_type,special_code,score,rank,create_date,sys_corder_code,savant, Appr_flag)Values(Sys_guid (), Item.id,'ea488598dfa247
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