truncate in teradata

How to restore the MySQL truncate table (provided that binlog is backed up and enabled)1.1 back up database thunder mysqldump-S/tmp/mysql3316.sock -- single-transaction -- master-data = 2 thunder> thunder_full_2015112. SQL 1.2 for truncate table operation and insert into table (work)root@localhost:mysql3316.sock [(none)]>select * from thunder.tb1;+----+---------+| id | name |+----+---------+| 1 | test

#include #include int truncate (const char *path, off_t length);int ftruncate (int fd,off_t length);The truncate and ftruncate function cause the regular file named by path or referenced by FD to is truncated to a size of PreciselyLength bytes.The/*truncate and Ftruncate functions are named by the parameter path or by a regular file pointed to by the parameter fd

In Oracle 12c, the performance of some drop and truncate partition commands can be optimized by delaying the maintenance of related indexes, while keeping the global index valid.1. SettingsThe following example shows the process of creating and loading data from a table with a global index.--Build a tableCREATE TABLE T1(ID number,Comment VARCHAR2 (50),Crt_time DATE)PARTITION by RANGE (crt_time)(PARTITION part_14 VALUES less THAN (to_date (' 01/01/2015

Transferred from:http://chenxy.blog.51cto.com/729966/1684591, the same point a. You can delete data, where truncate is used for full table emptying data, and delete can choose to delete 2, different points: A. rollback, delete supports the rollback of things, and truncate does not support them. Extension: In Oracle, things can be rolled back because of the undo table space designed in Oracle. The data can

Tags: main data rollback CREATE VIEW trigger define differentiated transactionsDelete and truncate and drop differences (Personal understanding, if any errors, please indicate) Delete Delete method: Truncate DELETE Data only, delete Delete Deletes the data only, deletes the entire table first, removes the row and creates (? ） Drop Delete entire table (structure and data) Space: The space occupied by the

Tags: using SP strong data div on BS SQL MySQLTruncate use note due to the TRUNCATE TABLE a_table command once, take the lesson and record it as a warning!MySQL TRUNCATE TABLE a_table command affected result description, hands-on experience command TRUNCATE TABLE a_table; The data in the execution table is deleted and the increment ID value is emptied, but the in

The strip_tags () function removes tags from HTML, XML, and PHP. The strip_tags () function removes tags from HTML, XML, and PHP. The code is as follows: World !"); ?> In smarty, you can use strip_tags to remove html tags, including any content between For example: Index. php: The code is as follows: $ Smarty = new Smarty; $ Smarty-> assign ('articletitle', "Blind Woman Gets New Kidney from Dad she hasn' t Seen in Years."); $ Smarty-> display ('index. tpl '); Index. tpl

The strip_tags () function removes tags from HTML, XML, and PHP.Copy codeThe Code is as follows: In smarty, you can use strip_tags to remove html tags, including any content between For example:Index. php:Copy codeThe Code is as follows:$ Smarty = new Smarty;$ Smarty-> assign ('articletitle', "Blind Woman Gets $ Smarty-> display ('index. tpl '); Index. tpl:Copy codeThe Code is as follows:{$ ArticleTitle}{$ ArticleTitle | strip_tags} Output result:Copy codeThe Code is as follows:Blind Woman Gets

Troubleshooting logic: 1. first, set the tables in the database that contain foreign key constraints to invalid state 2. after all the table data is cleared, the foreign key constraint table is set to available. Specific implementation Script: declarebeginforvv_sqlin (SELECTALTERTABLE | table_name | DISABLECONSTRAINT | CONSTRAINT_NAMEalter_ SQL Troubleshooting logic: 1. first, set the tables in the database that contain foreign key constraints to invalid state 2. after all the table data is clea

PHP collection tool: captures the required content data based on the start string and end string. PHP collection tool: Collect required data based on the start string and end string. PHP collection tool: Collect required data based on the start string and end string. PHP collection tool: truncate the required content data based on the start string and end string PHP collection tool: captures the required content data based on the start string and end

Access is similar to the truncate statement in SQL Server.1. Table Name: mytable auto-increment column: myid2. Delete from mytable; (delete data first)3. alter table mytable alter column myid counter (); (corrected auto-incrementing column)When executing this sentence, the system prompts: The field data type is invalid. It is strange that I deleted the table, re-created it, and executed it normally.4. Access cannot execute two statements at the same t

When using the Empire tag template, you must intercept the string, but if you setIntroductionThe html Tag is displayed on the front-end. My solutions are now released. The first user of my empire. If the problem occurs, you are welcome to leave a comment. Forget to communicate with each other The Empire tag template uses program code to remove html tags and truncate strings 1. Add a user-defined function to the e/class/connect. php file.How to remove

In the actual working environment, if you Truncate several data dictionary tables in the database during operation, the database will no longer be available, this article will give a detailed explanation of a related case. The example is as follows: Database environment: Oracle Database 9.2.0.7 RAC. (Note: the database is not backed up because the transaction volume of the database is large ). Truncated tables found after check: SQL> select object_nam

How to dynamically truncate the part of the string "1|10,2|11,3|12" between | and, the number, including |?

Smarty questions about the use of truncate

="...") { intTextleng =Gettextleng (text); if(Textleng >maxWidth) { intSuffixleng =Gettextleng (text, suffix); Text.text= Striplength (text, Maxwidth-suffixleng) +suffix; } Else { return ; } } /// ///truncates a string by a specified width/// /// /// /// Private Static stringStriplength (text text,intwidth) { intTotallength =0; Font MyFont=Text.font; Myfont.requestcharactersintexture (Text.text, Text.fontsize,

in the transaction log in order to remove 2MB 2 . Span style= "font-family: Arial" > (note that the status is 2 rows). ?If the transaction log is now backed up again, the transaction log will be truncated again, and now the active interval is the virtual log file 2 up. If I try to shrink the file again now, SQL Server it will successfully shrink to 2MB around, because the log's active range is close 2MB up. The file is shrunk to the size closest to the log enlistment. The output of

In MySQL, if you need to clear the table, you only needTRUNCATE table_name;Then, if there is a self-increment ID field, it will revert back to 1,However, PostgreSQL is slightly different from MySQL, and the self-increment field of PostgreSQL is implemented by sequence sequence.So when you clear the table, you also need to restore the sequenceTRUNCATE TABLE table_name RESTART IDENTITY;Reference: Https://stackoverflow.com/questions/13989243/sequence-does-not-reset-after-truncating-the-tablePostgre

substr(‘OR:com.lcs.wc.placeholder.Placeholder:860825‘,INSTR(‘OR:com.lcs.wc.placeholder.Placeholder:860825‘,‘:‘, 1, 2)+1,length(‘OR:com.lcs.wc.placeholder.Placeholder:860825‘)),INSTR(‘OR:com.lcs.wc.placeholder.Placeholder:860825‘,‘:‘, 1, 2),length(‘OR:com.lcs.wc.placeholder.Placeholder:860825‘) From dual;CREATE TABLE Test (name VARCHAR2); INSERT into test values (' ca-ca1344-a-11oct141250-d '); INSERT into test values (' jd-jd693-a-11oct141105-d '); Method 1:Select substr (name,instr (name,'-',