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OceanBase

A unified distributed database ready for your transactional, analytical, and AI workloads.

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Embedded SQL in C for OceanBase

V1.1.7Enterprise Edition

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What's New What is ECOB? ECOB compatibility with Pro*C Install ECOB Overview Supported data types Data type conversion Indicator variable VARCHAR variable Structure String pointer Overview Variable declaration Connect to OceanBase databases Basic SQL statements Prepared statements Stored procedures Cursor Simple dynamic SQL statement ANSI dynamic SQL statements SQLCA structure WHENEVER statement LOB-related SQL statements Environment preparation Use ECOB Compile the Tuxedo service Command Line Options
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  2. Embedded SQL in C for OceanBase
  3. V1.1.7
iconEmbedded SQL in C for OceanBase
V 1.1.7Enterprise Edition

Structure

Last Updated:2023-06-29 11:12:55  Updated
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#docslug#/ecob/ecob/V1.1.6/structure A structure (Struct) can be delivered as a whole when it is used as a host variable. The structure will be automatically split and allocated to each column of OceanBase Database when it is precompiled. Sample statement:

struct A {
int c1;
char c2[20];
};
struct A a;
memset(a.c2,0,20);
EXEC SQL CREATE TABLE t1 (c1 int, c2 varchar(100));
a.c1=10;
strcpy(a.c2,"test");
EXEC SQL INSERT INTO t1 values(:a);

The structure can also be used as an output host variable and its members are automatically parsed when it is precompiled. Sample statement:

struct A {
int c1;
char c2[20];
};
struct A a;
memset(a.c2,0,20);
EXEC SQL CREATE TABLE t1 (c1 int, c2 varchar(100));
EXEC SQL INSERT INTO t1 VALUES (1,'ABC');
EXEC SQL select c1,c2 INTO :a FROM t1 WHERE c1=1;

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