dependent)The output results are as follows:"HDS"; 7"Hhao"; 5"Hsao"; 4"Hauuo"; 9"Haohao"; 4"FGSD"; 5The names of the columns are "EmpName" and "Numchildren" and are the attributes of the employee.After testing, the except operation will also filter out the results according to the definition. Now, play some tricks.If so, what would happen if the number of attributes for two tables were different?Build a new data table with the following code:Create Table Newone (newname Char(6), newnum
For MySQL exception handling, I do not use. But I think there is a need to write it down.
Standard format
DECLARE handler_type HANDLER FOR condition_value[,...] statement handler_type: CONTINUE | EXIT | UNDO --暂时不支持 condition_value: SQLSTATE [VALUE] sqlstate_value | condition_name | SQLWARNING | NOT FOUND | SQLEXCEPTION | mysql_error_code
Condition_value Details
1. MySQL ERROR CODE List
If you need to see more error lists, go directly to the MySQ
local mysql = require "MySQL" local db, err = Mysql:new () If not db then Ngx.say ("Failed to instantiate MySQL:", err) return End Db:set_timeout--1 sec local OK, err, errno, SQLState = db: connect{host = "172.16.18.162", port = 3306, Databas E = "Test", user = "root", password = "Cpyf", Max_pac Ket_size = 1024x768 * 1024x768} if not ok then Ngx.say ("Failed to Co Nnect: ", Err,": ", errno," ",
DB2 How to adjust table space sizeJust received a call from the customer, the program has been an error, all the business can not be done, copied a copy of the application Server (WebLogic) log, the log shows:Warn:2009-06-18 16:24:32,421:jdbcexceptionreporter[line:77}: SQL Error: -99999, Sqlstate:nullError:2009-06-18 16:24:32,422:jdbcexceptionreporter[line:78}: [ibm][db2][jcc][102][10040] non-automatic batch fails. Although a batch has been submitted, at least one member of the batch has an exce
, NO_AUTO_CREATE_USER, NO_ENGINE_SUBSTITUTIONCreate Procedure: create definer = 'root' @ 'localhost' PROCEDURE 'cityname _ by_id '(IN cid INT, OUT total INT) reads SQL DATA BEGIN SELECT id, city FROM city WHERE id = cid; SELECT FOUND_ROWS () INTO total; ENDcharacter_set_client: utf8collation_connection: utf8_general_ci Database Collation: utf8_general_ci1 row in set (0.00 sec)You can also query the system table information_schema.routines:
mysql> SELECT * FROM information_schema.routines WHERE R
Environment for php configuration problems: win7iis7.5php5.3.10mssql2008 use php to connect to Microsoft sqlsrv under SQL. After installation, you can use helloworld to test Microsoft's test case: PHPcode lt ;? Php * ConnecttothelocalserverusingWindowsAuthenticationa about php configuration
Environment: win7 iis7.5 php5.3.10 mssql 2008
Use php to connect Microsoft sqlsrv under SQL. Hello world
Test cases for Microsoft:
PHP code
$value) { echo $key.": ".$value."
In the MySQL database, use the cursor to traverse cyclically /*
Delete all data tables in the * dt database with empty docuemttype and MD, PD, and ET documenttype:
Delete from table name where length (documenttype) */
DELIMITER $
USE 'database name 1' $
Drop procedure if exists 'stored PROCEDURE name 1' $
Create procedure 'stored PROCEDURE name 1 '()
BEGIN
DECLARE str varchar (40 );
DECLARE Done int default 0;
DECLARE rs cursor for select table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_sch
Mysql1206SQLSTATE: HY000 (ER_LOCK_TABLE_FULL) problem bitsCN.com
One of the requirements of a project recently is that data in some databases needs to be deleted regularly (certain conditions are met, such as data not retained seven days ago)
Initial execution method:
Use Quartz to regularly perform database operations and delete data. use the delete statement for database operations.
When the data volume is small at first, there is no problem. later, as the data volume increases, an error is re
()
Const char * mysql_sqlstate (MYSQL * mysql)
Description
Returns the string ending with Null, which contains the SQLSTATE error code of the last error. The error code contains five characters. '123' indicates no error. The value is specified by ansi SQL and ODBC. For a list of possible values, see Appendix B:Error code and message.
Note that not all MySQL errors are mapped to the SQLSTATE error code. The
common data access mode in PHP.
PDO: CURSOR_SCROLL (integer)
Create a PDOStatement object that can scroll cursors. Use the PDO: FETCH_ORI _ * constant to control the rows obtained in the result set.
PDO: ERR_NONE (string)
Corresponding to SQLSTATE '200', indicating that the SQL statement is successfully issued without errors or warnings. This constant is convenient when PDO: errorCode () or PDOStatement: errorCode () is used t
method of error handling in PDO a-errorcode () method
There are two ways to get error messages in a program in PDO: ErrorCode () method and ErrorInfo () Method! Then the next article, we will introduce you to each of these two methods!
Before we introduce you to the three ways to capture the error of the SQL statement in PDO, if you are still not familiar with or do not understand, you can review the use default mode-pdo::errmode_silent (a method of capturing errors in a SQL statement in PDO),
:" + dbh. get_server_inforescue Mysql: Error => e puts "Error code: # {e. errno} "puts" Error message: # {e. error} "puts" Error SQLSTATE: # {e. sqlstate} "if e. respond_to? ("Sqlstate") ensure dbh. close if dbhend ruby has two types of operations on the database: One is that the result set is not returned (such as insert, update, delete, and so on) one is to ret
incomplete or is still in progress ".SQLSTATE = 57019
Db2 restore db TestDB incremental from D: \ DB2_Train taken at 20100426080303
C: \> db2 connect to TestDBSQL1119N cannot connect to or activate the Database "TESTDB" because the previous recovery is incomplete or is still in progress ".SQLSTATE = 57019
C:> db2 restore db TestDB incremental from D: \ DB2_Train taken at 20100426080406The DB20000I restore
The following articles mainly describe the error description of connecting Ondemand to sql0206n after installing 7.1.2.6 for DB2 CMO. Our products are: DB2 Content Manager Ondemand for Multiplatform; the operating platform is AIX, Linux, Windows 2000, and Windows NT.
Software Version: 8.3;
Problem description:
After installing patch 7.1.2.6 of IBM DB2 Content Manager Ondemand, The sql0206n error is returned when the Ondemand server is connected. The following error message is displayed in the
Comparison of unique constraints and unique indexes in DB2 and Oracle: db2 => connect to sample database connection information database server = db2/NT 10.1.0 SQL authorization id = ADMINIST... local Database alias = sample create table db2admin. test. The field id is null. The following process shows that the unique constraint in db2 does not allow empty column values. Db2 => the create table db2admin. test (id int) DB20000I SQL command is successfully completed. Db2 => alter table db2admin. t
variable. Users can use the DECLARE keyword to define variables. The variable can then beAssigned value. The scope of these variables is begin ... End of the program segment. 1 define variable 2 for variable assignment # define variable my_sql, the data type is int, the default value is 10. DECLARE my_sql INT Default 10;# variable assignment set My_sql=30;select d_id into My_sql from employee where id=2;14.1.4 define condition and handlers define conditions and handlers in advance to define the
handle is manipulated, which is called the SQLState code, and the syntax format for the method is as follows:
The return value of the ErrorCode string (void) ErrorCode () method is a sqlstate,sqlstate code that consists of 5 numbers and letters. The following is an example of using the ErrorCode () method:
"Program 11-17" disc \code\11\pdo\errorcode.php
Copy
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