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Do you have a lot of trouble in the actual installation process of MySQL 4.0.21? I have also checked a lot of related articles on CU, but the results are not satisfactory. In order to reduce the cost, it is necessary to introduce the experience here, this will reduce the number of people in the future. I wrote this article not only for beginners like me to complete MySQL (the best combination with PHP)-4.0.21 installation, in addition, I am able to co

exmaple_id primary key (id); alter table example add unique (age); alter table example drop unique (age ); -- query the uniqueness constraints of a table (including names and columns) select column_name from user_cons_columns cu, user_constraints au where cu. constraint_name = au. constraint_name and cu. table_name = 'example '; ----- view (if the permission is

Linux File System Management Operating System: RHEL6.4-64 Add 30 GB disks to the Linux operating system (Virtual Machine) Partition, the first primary partition is 18 GB, formatted as an ext4 file system, mounted to/u01 To enable system restart (automatic mounting upon startup), use LABEL for mounting. 1.1.1 confirm disk devices in the system Df-Th to view the current file system usage [Root @ rhel64 ~] # Df-Th View the current disk device and partition information [Root @ rhel64 ~] # Fdisk-cul

wishes to renew the certificate. SpanishDespu é s que acabar de leer esta palabra ejemplar por palabra y oració n por la I ión, el coraz ón no puede ser calmo durante mucho tiempo, sacude!? Por qué hay tan bueno un modelo? ?! Mi red horizontal vertical bbs ha pensado por muchos? OS que nunca habr ácualquiera modela eso tiene me podr ía mover, yo nunca había esperado que eso visto tan exquisito más all áde compara un modelo hoy. el piso el hecho principal, es usted que permiti ómíentender ''gent

comments: SELECT * FROM User_col_comments --user_col_comments:table_name,column_name,comments The corresponding dba_col_comments,all_col_comments, these two more than User_col_comments ower column. --Querying the index of all the users ' tables SELECT * FROM User_indexes --Query the index of the user table (nonclustered index): SELECT * from user_indexes where uniqueness= ' nonunique ' --Query the primary key (clustered index) of the user table: SELECT * from user_indexes where uniquen

The previous introduction of basic CUDA programming knowledge, then this article to see the GPU in the processing of data calculation of the efficiency, we take the matrix multiplication as an example. performs matrix multiplication and performance on 1.CPU. Code for matrix multiplication on the CPU: mat_mul.cc: A[i]*b[i] + c[i] = D[i] #include wtime.h: #ifndef _wtime_ #define _WTIME_ double wtime (); #endif wtime.cc: #include Makefile: Target: g++ mat_mul.cc wtime.cc ./a.ou

=ucc.constraint_name and Uc.r_constraint_name=rela.r_constraint_name and Uc.table_name= ' Onlinexls ' 1, look up all the indexes of the table (including index name, type, constitute column): Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = I.tabl E_name and t.table_name = table to query 2, lookup table's primary key (including name, constituent column) Table name: Select cu.* from

,block#=:4,status$=:5,user#=:6,undosqn=:7,xactsqn=:8,scnbas=:9,scnwrp=:10,inst#= : 11,ts#=:12,spare1=:13 where Us#=:1End of STMTPARSE #2: c=62500,e=211766,p=14,cr=85,cu=0,mis=1,r=0,dep=1,og=4,tim=80533755Binds #2:KkscoacdBind#0Oacdty=01 mxl=32 (mxlc=00 mal=00 scl=00 pre=00Oacflg=18 fl2=0001 frm=01 csi=852 siz=32 off=0Kxsbbbfp=2a6ceac2 bln=32 avl=09 flg=09Value= "_syssmu1$"Bind#1oacdty=02 mxl=22 mxlc=00 mal=00 scl=00 pre=00oacflg=08 fl2=0001 frm=00 csi

Learning computer image processing algorithm of children's shoes, you have to learn Cuda, why. Because image processing is usually a matrix operation, it is very important to calculate the calculation time of millions at this time is essential. OPENCV itself provides a number of CUDA functions that meet the needs of most users. But not absolutely, sometimes we need to define a kernel function to optimize, of course, you can also use OpenGL or multithreading, OPENCV also provide better support, m

... However, for the site, I need to provide the same language interface for different users ... So...... Need to be changed into assembly.loadassembly (...) ------------------------------------------ Well, in the end, it's called ... Notice that the code that appears below is written by me ... There is absolutely no need to do it in my own way ... Imports GNU. Gettext Public Class LH' LH = Language HelperPublic Shared Catalog as Gettextresourcemanager Public Shared Sub Init (ByVal name as Stri

to 100 times times.At present, the DPL technology is to modulate the distribution cable system so that it can transmit two or even multiple signals at the same time without any mutual loss. The frequencies of these signals are wide, ranging from ultra-low frequency (e.g. 50/60hz) to UHF (e.g. 500/600mhz). The modulation of the technique is achieved by installing a three-outlet directional coupling modulation unit (CU) at the corresponding network int

column):Select T., I.index_type from User_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = I.T. Able_name and t.table_name = table to query--lookup table's primary key (including name, constituent column):Select Cu. From User_cons_columns cu, user_constraints au where cu.constraint_name = au.constraint_name and Au.constraint_type = ' P ' and au.table_name = table to query -

Label:Note: The name of the table you want to query is capitalized. For example: ' USER '1. Find all indexes of the table (including index name, type, constituent column):Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = I.tabl E_name and t.table_name = table to query2. lookup table's primary key (including name, constituent column):Select cu.* from User_cons_columns

= Self.iteration (False, Sparse.csr_matrix (self.user_vectors)) T1 = Time.time ()Print ' Iteration%i finished in%f seconds '% (i +1, t1-t0) def Iteration(self, user, fixed_vecs): #相当于C的三木运算符. If user=true num_solve = Num_users, and vice versa is Num_itemsNum_solve = Self.num_usersifUserElseSelf.num_items num_fixed = fixed_vecs.shape[0] Yty = fixed_vecs. T.dot (fixed_vecs) eye = Sparse.eye (num_fixed) Lambda_eye = Self.reg_param * Sparse.eye (self.num_factors) Solve_vecs = Np.zer

user_indexes where uniqueness= ' nonunique '4. Query the primary key of the user table (clustered index):SELECT * from user_indexes where uniqueness= ' UNIQUE '5. Index of query tableSelect T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = I.index_name andT.table_name= ' NODE '6. Query the primary key of the tableSelect cu.* from User_cons_columns cu, user_constraints au where cu

Some SQL (under Oracle) summaries used in the project: 1. Find all indexes of the table (including index name, type, constituent column) 1 Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = I.index_name and T.tab Le_name = i.table_name and t.table_name = table to query2. lookup table's primary key (including name, constituent column) 1 Select cu.* from User_cons_columns cu

Oracle DBA Common Queries–1. Querying the system for all objectsSelect owner, object_name, Object_type, created, Last_ddl_time, timestamp, statusFrom Dba_objectsWhere Owner=upper (' Scott ')–2. View all system tablesSelect owner, TABLE_NAME, tablespace_name from Dba_tables–3. View all users ' tablesSelect owner, TABLE_NAME, tablespace_name from All_tables–4. View the current User tableSelect table_name, tablespace_name from User_tables–5. Viewing the User table indexSelect T.*,i.index_type from

Label:Transferred from: http://www.cnblogs.com/aflyfly/archive/2011/08/10/2133546.html actinium Fly MS SQL Server1. Query All TablesSelect [ID], [name] from [sysobjects] where [type] = ' u ' ORDER by [name]2. Query all databases3. Select [Name] from [sysdatabases] ORDER by [name]Querying fields in a tableSelect [Name] from [syscolumns] where [name] = ' tablexxx ' ORDER by [Colid] Oracle 1. Find all indexes of the table (including index name, type, constituent column): Select T.*,i.index_type fro

1. Find all indexes of the table (including index name, type, constituent column):Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = I.tabl E_name and t.table_name = table to query2. lookup table's primary key (including name, constituent column):Select cu.* from User_cons_columns cu, user_constraints au where cu.constraint_name = Au.constrain

Label:MS SQL Server 1, querying all tables select [ID], [name] from [sysobjects] where [type] = ' u ' ORDER BY [name] 2, querying all Databases 3, select [Name] F ROM [sysdatabases] ORDER BY [Name] Query table field select [Name] from [syscolumns] where [name] = ' tablexxx ' ORDER by [Colid] Oracle 1. Find all indexes of the table (including index name, type, constituent column): Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = I