the operation flow is as follows, stuck at 29% all the time. Please tell me, what happened?
how to solve it?
Picture description
the operation flow is as follows, stuck at 29% all the time. Please tell me, what happened?
how to solve it?
Picture description
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background: 1. I am a java programmer 2. Recently interviewed for a senior development position 3. The previous project mainly used less oracle,mysql, and the companies interviewed basically used mysql s 4. I am weak in the database 5. Recently, I...
when using Mybatise, I use the following code to operate on the database. No error is reported, and it executes successfully, but the database does not find data @Test public void testInsertUser(){ SqlSession sqlSession = sessionFactory.o...
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enter the order number on the page to query the data in Table A, extract some of the field values in Table A to the page, and make changes. The other field values remain the same. insert the modified value and the unmodified field into the new table b...
how does Entity Framework Core connect to the Oracle database? ...
is currently self-learning mysql,. When querying, sometimes you need to use as aliases, but after adding as aliases to the following two query statements, why is it incorrect? 1, select cat_id,goods_name,shop_price from goods where shop_price in (sele...
PHP oracle GEOLOCPHP I printed the data type of this field, and it turned out to be 108, and Baidu didn t have it for half a day . ...
when writing insert sql statements with python + cx_oracle, the error message is an invalid ORA-01722: number. The field types of the two tables are the same, and they are executed in PL SQL, and the field that reported the error is found. But after loo...
The business scenario is as follows: I provide a ws server A for client B to call. Each call, the client inserts a piece of data into the database tab and then submits it. My server An internally calls another server C, and passes this data to the serve...
1. Process: Python looks up the data in the table through cx_Oracle and inserts the data into another table. 2. The type of date and time stored in both tables is of type Date. 3. The time field I took from the query table prints out that the type i...
big head. ...
what is the relationship between the number of oracle, connections, session sessions and users? assuming that the default number of connections installed is 150, is it true that the total number of connections for all users cannot be greater than 150? Or...
conn c-sharp-sharpscott tiger SELECT * FROM emp ORDER BY hiredate; output the following result: if you do not specify whether the sort is ascending or descending, it should be sorted in ascending or descending order, but you can see that the data is...
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how do I query the last 100 pieces of data in multiple tables in the ORACLE database? For example, the two tables of An and B have a time field, and the last 100 items of data in tables An and B are not the last 100 items in An and B. ...
enable limit configuration alter system set resource_limit=true; create a connection number role named sess number of create profile sess limit sessions_per_user; assign to the user alter user username profile sess; when the maximum number of con...
Code: stmt, err := db.Prepare("begin TestPro(:1,:2,:3);end;") if err != nil { return "",err } defer stmt.Close() var mail string = "1" var pwd string = "2" var op_re_list string var result sql.Result result,e...
problem description orcaleABCAPHONEBPHONECPHONE: A B C ID PHONE ID PHONE ID PHONE a1 11111 b1 11111 c1 11111 a1 22222 b2 33333 c2 11111 now I want to change the PHONE=11111 in ...