sbc t5

Tags: update self-increment column1. Description(1) For the MyISAM table, if you update the self-increment column with update, an error occurs if the column value repeats with the existing value, and if it is greater than the existing maximum, the auto_increment of the table is automatically updated and the operation is safe.(2) for the InnoDB table, the Update Auto_increment field, if the column values and the existing values are duplicated, then an error occurs, if the value is greater than th

Precautions for using the AUTO_INCREMENT column in MySQL: update auto-incrementing Column1. Description (1) For the MyISAM table, if you use UPDATE to UPDATE the auto-incrementing column, if the column value is the same as the existing value, an error occurs. If the column value is greater than the existing maximum value, the AUTO_INCREMENT of the table is automatically updated, and the operation is safe. (2) For the innodb table, in the update auto_increment field, if the column value is the sa

SqlBulkCopy class is System.Data.SqlClient under the class, we are not used in development, and even do not know that there is such a class exists, but it is more than SQL INSERT, transaction BULK INSERT, SQL bulk splicing is much faster than the call stored procedure insert ConvenientHere's how to use it:public static bool Executetransactionscopeinsert (DataTable DT, int batchsize) { int count = dt.Rows.Count; string tableName = "TestTable"; int copytimeout = 600; BOOL flag = fal

Cyq.data:using(SqlBulkCopy SBC =NewSqlBulkCopy (Con, keepid? SqlBulkCopyOptions.KeepIdentity:SqlBulkCopyOptions.Default) |sqlbulkcopyoptions.firetriggers, Sqltran)) {SBC. BatchSize=100000; Sbc. DestinationTableName=Sqlformat.keyword (MDT. TableName, Daltype.mssql); Sbc. Bulkcopytimeout=AppConfig

protected memory. This usually indicates that other memory is corrupted . " I thought I found a problem and it ended up in the pit. 1: This exception is thrown when a method returns an array of t[] GetList (). 2: This exception is thrown when dictionary adds an array add (key,t[]). 3: When the parameter of the method is: public mdatatable Select (params object[] selectcolumns) This array, throw this exception. Well, this array is what offended Microsoft, to be so bullied by it. Changed a hal

Tags: sql join lemp end character size routing employee LinCase is left (t5.name,2) = ' substring ' and then ' (t5.name,9,2) Else substring (t5.name,7,2) End GD Intercept pre-1~10 digits ac17072408 Select substring (name,0,11) from Profin_application; name=ac1707240801 Select substring (name,0,11) from Profin_application;Select Left (name,10) from Profin_applicat

TABLE:T5Index Name:ind5 Test-1:=========Index is rebuilt OFFLINE Alter session SET Events ' 10046 Trace name Context forever, Level 12 ';Alter index IND5 rebuild;Alter session SET Events ' 10046 Trace name context off '; The Trace Analyzer output has the following wait details:+ There is no blocks access from T5+ IND5 blocks are accessed Test-2:=========Index is rebuilt ONLINE: Alter session SET Events ' 10046 Trace name Context forever, Level 12 ';A

Actual environment topology diagram: In general, FreeSWITCH uses the SOA pattern by default, and in some cases the non-SOA model. Non-SOA model, what can cause problems. will result in a SDP address error, resulting in a voice single pass. Through the topology map can be seen, FreeSWITCH is a dual network card server, the actual environment, the intranet IP phone call, two-way voice normal, both sides can hear each other speech. But in the case of phone calls (mobile phone calls in), bridge or

The connect by level syntax is particularly useful when constructing a large amount of data. However, if you do not really understand the meaning of the syntax, misuse will lead to the production of a large amount of data, generally, the incorrect understanding is the Cartesian product of the Base record and the base record. Cartesian product is correct, but not both of them are the base record. One of them is the record of the last level, it is important to know this, otherwise it will produce

--r--1 root supergroup 2017-11-25 20:53/dir1/file1#创建一个默认的内部表0:jdbc:hive2://192.168.163.102:10000> CREATE TABLE T2 (c1 int,c2 string) row format delimited fields terminated by ', ' stored as textfile;(2) storage file format supported by hiveTextfile, Sequencefile, Orc, Parquet,avro0:jdbc:hive2://192.168.163.102:10000> CREATE TABLE T5 (c1 int,c2 string) row format delimited fields terminated by ', ' stored as sequencefile;0:jdbc:hive2://192.168.163.102

Python -- Redis Set, python -- redisset1. unordered set Set operation. The Set operation is a list that cannot be repeated. 　　1.1 sadd (name, values) # Add elements to the set corresponding to name 　　1.2 smembers (name) # Obtain all members of the set corresponding to name. sadd ('s1 ', 't1', 't2', 't3', 't1') print (r. smembers ('s1') # output {B 't1 ', B 't2', B 't3 '} # The set is deduplicated. 　　1.3 scard (name) # Obtain the number of elements in the set corresponding to name print (r. scard

[I]. tablename );ODA. Dispose (); Olecon. Close ();Olecon. Dispose (); Oledbdataadapter. The efficiency of the update method is basically the same as that of SQL concatenation and insertion,Oledbdataadapter. Update In fact, it is also a one-by-one insert update. But he can improve us.ProgramStability. 2. Import dataset to SQL Server (Sqlbulkcopy Method) Sqlconnection conn = new sqlconnection (sqlconnectstring ); Conn. open ();Sqlbulkcopy SBC