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. Arr, Book–number); Book–name. Len = strlen (book–name. arr); EXEC SQL UPDATE Book SET bname =: book–name; Bdesc =: book–number; } (6) SQL Communication area The SQL communication area is described in the following statement: EXEC SQL INCLUDE SQLCA; This section provides a success or failure record and error handling for the user to run the program. Composition of the SQLCA SQLCA is a variable of a struct type, which is an interface between Oracle and the application. When the PRO*C program i

Save Rows as ... Save data to ExternalRows->import importing data from outside----------------------------------------------------------------A transaction object can only connect to one database at a time, and defining multiple transaction objects allows you to establish connections to a database at the same time.Transaction Gt_sqlcaGT_SQLCA = Create Transaction----------------------------------------------------------------TransactionIn Pb, the operation of a transaction is done by first defi

pageResults page, right-click Save Rows as ... Save data to ExternalRows->import importing data from outside----------------------------------------------------------------A transactional object can only connect to a database at a time, defining multiple transaction objects to be able to connect to and from a database at the same time.Transaction Gt_sqlcaGT_SQLCA = Create Transaction----------------------------------------------------------------TransactionIn Pb, the operation of a transaction

-predefined exceptions for these Oracle errors. Declaring such an exception requires the use of Exception_init compilation directives.The exception_init compiler directive is defined as follows:pragma exception_init (exception_name,oracle_error_number);Exception_name is a pre-declared exception name, Oracle_error_number is the error number, and this command must be written in the definition section.Example:DeclareE_inte exception; --Definitionpragma exception_intt (e_inte,-2291); --Associated Or

file. Solution: When the transaction log of the database is full, increase the following database ParametersLog File size (4 kb) (logfilsiz)Number of Primary log files (logprimary)Number of secondary log files (logsecond) To modify the corresponding parameters, run the following command: Update dB CFG [fordbname] Using DB2 => Update dB CFG using logretain on First Batch: C: \ Program Files \ IBM \ sqllib \ bin> DB2 import from "F: \ hotel \ A-0001-200W.csv" of del insert into hotelSql310

The built-in Oracle functions sqlcode and sqlerrm are especially used in the others processor to return Oracle errors respectively. CodeAnd error messages. Others processor should be the final exception processor in the exception processing block, because it is used to capture all Oracle exceptions except for other exception processor processing, so in ProgramThe outermost layer of the others processor ensures that all errors are detected

1. pre-defined exception handling Example 1: update the specified employee's salary. If the employee's salary is smaller than 1500, the employee's salary is increased by 100;DECLAREV_empno employees. employee_id % TYPE: = empno;V_sal employees. salary % TYPE;BEGINSELECT salary INTO v_sal FROM employees WHERE employee_id = v_empno;IF v_sal UPDATE employees SET salary = salary + 100 WHERE employee_id = v_empno;DBMS_OUTPUT.PUT_LINE ('Code: '| v_empno |' employee salary updated! ');ELSEDBMS_OUTPUT.

') start with transaction_id = :p_trx_id connect by transaction_id = prior parent_transaction_id; To capture the possible errors of this SQL statement, we will write the following sentence: pouersql("RVTUQ", "134", FALSE )Pouersql () is a function in pouer. if an error occurs in the preceding SQL statement, the error message is written to message stack. and returns true. There are three parameters, routine, location, no_rows_is_err. Routine indicates the name of the file with an SQL er

Label: #include #include#include#include#include#defineSUCCESS 0Main () {EXEC SQL INCLUDE SQLCA; EXEC SQL BEGIN DECLARE section; Char*string1; Charstr1[Ten]; Charstr2[Ten]; Charstr3[Ten]; EXEC SQL END DECLARE section; EXEC SQL CREATE DATABASE example3; EXEC SQL DATABASE Example3; if(SQLCODE = =SUCCESS) {EXEC SQL CREATE TABLE Student (AlarmChar(6), snameChar(Ten), SexChar(Ten) ); } EXEC SQL INSERT into Student VALUES ("A

mals_nm_cpu_info_t table Partition Begin-- Query the maximum Date on which the partition of the mals_nm_cpu_info_t table has been created.-- P_nm_cpu_info_20080221Select max (substr (partition_name, 15, 8) into v_cpu_info_maxFrom user_tab_partitionsWhere table_name = upper ('mals _ nm_cpu_info_t '); For I in 1 .. partnum Loop -- Create a mals_nm_cpu_info_t table PartitionIf v_cpu_info_max V_partdate: = to_char (sysdate + I, 'yyyymmdd ');V_partdate1: = to_char (sysdate + I + 1, 'yyyymmdd ');V_s

The DB2 tutorial you are looking at is: Use shell extraction to update DB2 data. The shell processing DB2 database, which is written for work needs, extracts DB2 data from the shell and processes it. #SQL文定义 Sql= "SELECT AAA, BBB, CCC from MYTBL1" #执行SQL Sdata= ' DB2 ' "$SQL" #返回值判断 If [$?-ne 0] Then #显示db2返回的错误信息 echo "$SDATA" Exit 1 Fi #对取得的数据进行处理. echo "$SDATA" | Sed-e ' 4,/^$/!d;/^$/d ' | While read AAA triple BBB CCC Todo echo "AAA is $AAA, the BBB is $BBB, the CCC is $CCC"

The shell processing DB2 database, which is written for work needs, extracts DB2 data from the shell and processes it. #SQL文定义 Sql= "SELECT AAA, BBB, CCC from MYTBL1" #执行SQL Sdata= ' DB2 ' "$SQL" #返回值判断 If [$?-ne 0] Then #显示db2返回的错误信息 echo "$SDATA" Exit 1 Fi #对取得的数据进行处理. echo "$SDATA" | Sed-e ' 4,/^$/!d;/^$/d ' | While read AAA triple BBB CCC Todo echo "AAA is $AAA, the BBB is $BBB, the CCC is $CCC" Done #取得数据件数 echo "$SDATA" | Sed-n-E '/^$/{1,3d;n;s/[^0-9]*\ ([0-9]*\) [^0-9]*

different exceptions.However, it is generally possible to execute only one of the exception handlers, because when an exception occurs, the execution of the PL/SQL block is immediately transferred from the executable to the exception handling section, and the execution of the PL/SQL block ends when the exception is processed, and no other exception occurs.You can write a separate exception handler for an exception, or you can write the same exception handler for multiple exceptions, and you can

prepare to analyze the statement, and define a cursor for ValueFor example, if the data to be queried is in multiple tables and select user_name from, dynamic sql3 can be used for query.Strcpy (SQL, "select user_name from ");Strcat (SQL, "Table1"); // Table2, table3, table4Exec SQL prepare sqlproc from: SQL;Exec SQL declare cur_user_name cursor for sqlproc;Exec SQL open cur_user_name;While (1){Exec SQL fetch cur_user_name into: ora_id;If (sqlca. sqlcode