teleconference table

Create a role tableCREATE TABLE Nbctxp. Tbl_nbc_nonbankrole (ID BIGINT not NULL,ROLENAME VARCHAR (50),Createtime TIMESTAMP,UpdateTime TIMESTAMP,CONSTRAINT p_id PRIMARY KEY (ID));CREATE INDEX SQL150130091455900 on NBCTXP. Tbl_nbc_nonbankrole (ID);Let the primary key increment by 1Alter table Nbctxp. Tbl_nbc_nonbankrole ALTER column ID set generated always as identity (start with 1,increment by 1)Create an in

Tags: style color data div on SP SQL CBulk Insert Table (table data Sheet) * * * *1.INSERT into SELECT statementThe statement form is:Insert into Table2 (field1,field2,...) Select Value1,value2,... from Table1Requires that the target table Table2 must exist, because the target table Table2 already exists, so we can ins

In the design of the database, often do not take into account the problem of table partitioning, often in the burden of the data table load is getting heavier, will take into account the partitioning method, at this time, it is related to how to convert the ordinary table to the problem of the Component table.So, how do you convert a normal

Insert a record to the master table, retrieve the primary key of the record of the master table, and assign values to multiple records from the table. Public void createworkordgrid (pp_workord_hd headobject, list 　　 Insert a record to the master table, retrieve the primary key of the record of the master

MySQL one table to another table guide data, where the new table has a field is a fixed value, SQL statement how to write? Reply content: MySQL one table to another table guide data, where the new table has a field is a fixed

To achieve this, replace A1 in Table A with B2 in Table B. The condition is a1 = b1, and A1 and B1 are unique. Update a set a. A1 = (select B2 from a, B where a. A1 = B. B1)Where a. A1 = (select B1 from a, B where a. A1 = B. B1) Select * fromSelect * from B -- Create Table Create Table A ( A1 varchar2

Compilation relatedSome common things about the assembly, including:ASCII Code character table debug command BIOS function call table DOS function call table assembly language error message form ASCII code character sheetDebug commandBIOS function Call tableDOS function call tableassembly Language Error Information tableAssembly-related (ASCII code character

Label:Enter the database: 1 mysql> use sunshine_blog;Output: 2Database changed Check the database table: 1Mysql>Show tables;Output:2 +-------------------------+ 3 |Tables_in_sunshine_blog| 4 +-------------------------+ 5 |Test| 6 | User | 7 +-------------------------+ 8 2Rowsinch Set(0.00Sec Build table: Auto_increment automatically increment, not null non-NULL, primary key (field) prima

(I) origins of hot and Iot The storage speed of heap organization tables is faster because sorting is not required. However, to find records that meet certain conditions, you must read all the records for filtering. At this time, the index will appear to speed up the query. The index is used to sort and store the values of a few specific fields and record the position in the table, Because the index is ordered, it is easy to query the specific record

Modifying a table definition (DDL) is a very painful process for an 7*24 online production system, because if you use the ALTER statement directly, an exclusive lock is placed on the table, meaning that all of the DML and select cannot be manipulated during that time, and if it is a large table, Alter will have a very long time, and the application will be greatl

Query the information of an oracle table (table, field, constraint, index) by column name + Table name query constraint name SELECT * FROM USER_CONSTRAINTS WHERE table_name = upper ('org _ info ') SELECT * FROM USER_CONSTRAINTS WHERE CONSTRAINT_NAME = upper ('sys _ C0065894 '); alter table ORG_INFO add foreign key (par

Label:Connect and DisconnectConnectionMysql-h Host-u User-p (that is, the connected host, user name, and password used).DisconnectEnter quit (or \q) to exit at any time:Table ManagementClone tableNote: The CREATE TABLE ... like statement does not clone the foreign key definition of the table, and does not clone the data directory and index directory that the original ta