oracle sql keywords list

Oracle SQL statements are fast and slow, while oraclesql statements are fast and slow. Today, I encountered a very strange problem. One SQL statement is very slow in PL/SQL developer and takes 9 s. The problem SQL: SELECT * FROM GG_function_location f WHERE f. parent_id = '0

Operating Environment: AIX + 11g + PLSQL Includes the following content: 1. SQL statement execution process 2. optimizer and execution plan 3. Properly apply Hints 4. Indexes and Application Instances 5. Other optimization technologies and applications1. SQL statement execution process 1.1 SQL statement execution steps 1) analyze the syntax and analyze whether th

=62 oct=47 lid=62 tim=14727508742 hv=3517412409 ad= ' 12bbcff4 'Begin:id: = sys.dbms_transaction.local_transaction_id; EndEND of STMTPARSE #2: c=0,e=122,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=4,tim=14727508735EXEC #2: c=0,e=144,p=0,cr=0,cu=0,mis=0,r=1,dep=0,og=4,tim=14727508945=====================Parsing in CURSOR #2 len=61 dep=0 uid=62 oct=47 lid=62 tim=14727587562 hv=3517412409 ad= ' 12bbcff4 'Begin:id: = sys.dbms_transaction.local_transaction_id; EndEND of STMTPARSE #2: c=0,e=121,p=0,cr=0,cu=0,mis

create a new SQL window, and the file list below has the system and the database you created, which you can view.PL/SQL can also perform visual operations on Oracle.So the first time I installed PL/SQL, I said no listener, think about it. There should be no new folders and configuration of these two files, because the

test table: 1 public class Tb_people 2 { 3 public Guid Uid {get; set;} 4 public string Name {get; set;} 5 public int Age {get; set;} 6 Public int ClassId {get; set;} 7 } 　　 After filling in the connection string and assigning a value to the Connstring_default property of the Db_helper_dg class, we call the method directly to perform the query operation. 　　 Call the static method executelist to map directly to the entity class: 1

Oracle is a large database with a C/SClient/Server structure. It is mainly used in the 4GLSQL language and has the advantages of being powerful, simple, and easy to learn. The working process of the C/S structure is: when the client c end) inputs and sends an SQL statement, it will be sent to the server S end through the network ), the result is analyzed and executed, and then returned to the client through

One, source-side (Oracle) configuration1. Create a synchronization test tableCREATE TABLE gg_user.t01 (name varchar (primary key));CREATE TABLE gg_user.t02 (ID int primary key,name varchar (20));2. Add the definition file (is the transfer between heterogeneous, need to convert the field type and other processing needs to Defgen tool generation definition file)Ggsci (kermart) 4> edit params DefgenDefsfile D:\ggate\dirdef\t01.defUserID Gg_user,password

My main database used for oracle10g and SqlServer2008, through the actual use and access to data collated as follows: Theme Oracle 10g SQL Server 2008 Stored Procedure Format Create Or Replace Procedure stored procedure name (parameter list)IsBegin---stored procedure contentEnd stored procedure name; Create Procedur

Tags: Oracle plsql table PartitioningPL/SQL Basic Entry table partitioningPL/sql:Process Language(Procedure Language)and structured language(StructuredQuery Language)The combination of the programming language, is theSQLextensions that support multiple data types, such as large objects and collection types, can use control statements such as conditions and loops to create stored procedures, packages, trigge

When using ODP.. Net for Oracle programming, sometimes the SQL statements are very complex and need to be dynamically constructed query statements. There are two ways to construct dynamic SQL statements and execute the returned result set. 1. Construct SQL statements at the data access layer For example, in the fol

principle of dynamic SQL compilation is understood, and the basic development idea is mastered. Since dynamic SQL is an "indeterminate" SQL, its execution has its own characteristics. The Execute immediate statement is provided in Oracle to execute dynamic SQL, as follows:

The SQL statement is too long and needs to be stored through the array dbms_ SQL .varchar2s. Before execution. DeclareRochelle stmt dbms_ SQL .varchar2s;Rochelle cursor integer default dbms_ SQL .open_cursor;Rows number default 0;Rochelle length number: = 0;BeginRochelle stmt (1): = 'select 1 c1 ';For I in 2 .. 15000

Oracle Learn the use of Oracle SQL Loader One: Features of SQL loader Oracle has a number of tools that can be used to migrate, backup, and restore data. But each tool has its own characteristics. For example, exp and IMP can export and export data in the database, which is

-- start the database with startup mount Archive log list Alter database archivelog ALTER DATABASE OPENView commands supported by sqlplus Help INDEXUnlock user lock Log On with the user password set in step 1 during oracle Installation (for example, sqlplus "sys/zhb126 as sysdba") and run Alter user scott account unlock; Then execute sqlplus scott/tiger and you will be asked to modify scott's new password.

Label:Previously wrote an article about SQL Server access to the MySQL database, and recently just encountered the need to access Oracle, the configuration process is recorded for your reference.Preparatory workDo the following on the host that requires access to the Oracle database: 1. Installing the SQL Server databa

This article will discuss and share with you some common classic queries of oracle SQL. You are welcome to add them. You can also share some classic queries. In this article, if you think there is any better solution to every problem, you are welcome to raise it in time. Communication and sharing can make progress together. Thank you! Next four articles: [Recommended] o